Product Search

    SEARCH NOW FOR ALL YOUR CARLO GAVAZZI SOLUTIONS

    Radwell is here to supply you with all your plant floor needs.

    Radwell is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.

    Filter Results
    Results 651-700 of 970.
    CARLO GAVAZZI EP5520NPAP

    CARLO GAVAZZI

    EP5520NPAP

    DISCONTINUED BY MANUFACTURER, PHOTOELECTRIC SENSOR, 10-30 VDC, 200 MA
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$105.95
    CAN$105.95
    Repair Yours CAN$363.96
    CARLO GAVAZZI EO-1804-TBOS

    CARLO GAVAZZI

    ELECTROMATIC

    EO-1804-TBOS

    DISCONTINUED BY MANUFACTURER, PROXIMITY SWITCH, 20/230 VAC, 20/500 MA, 2 WIRE
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$77.43
    CAN$77.43
    CARLO GAVAZZI EO1802PPAP-1

    CARLO GAVAZZI

    EO1802PPAP-1

    PHOTOELECTRIC SENSORS- PHOTO, DIFFUS M18 200MM PNP QD
    ✓ IN STOCK!
    CAN$450.14 Buy New CAN$450.14
    CAN$297.18
    Repair Yours CAN$363.96
    CARLO GAVAZZI EN-12N

    CARLO GAVAZZI

    EN-12N

    BEVELED END CAP, M12, NON-SHIELD
    ✓ IN STOCK!
    CAN$60.50 Buy New CAN$60.50
    CAN$36.71
    CARLO GAVAZZI EMBCT23

    CARLO GAVAZZI

    ELECTROMATIC

    EMBCT23

    DISCONTINUED BY MANUFACTURER, TIMER, MULTI FUNCTION, SPDT RELAY OUTPUT, 5 A, 115-230 VAC, 24 VAC/DC, 50/60 HZ, IP20
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$468.30
    CAN$468.30
    Repair Yours CAN$363.96
    CARLO GAVAZZI EM24-DIN.AV5.3.D.DP.X

    CARLO GAVAZZI

    EM24-DIN.AV5.3.D.DP.X

    ENERGY ANALYZER, 3PH, 5A, 400V, 115/230VAC, PWR SPLY, 3 DIG INPT, DUPLINE PORT
    ✓ IN STOCK!
    CAN$995.00 Buy New CAN$995.00
    CAN$651.00
    Repair Yours CAN$492.00
    CARLO GAVAZZI ELA-C-R02-100K

    CARLO GAVAZZI

    ELECTROMATIC

    ELA-C-R02-100K

    LEVEL CONTROL RELAY CONDUCTIVE 24VAC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$664.28
    CAN$664.28
    Repair Yours CAN$363.96
    CARLO GAVAZZI EISNNOA50A

    CARLO GAVAZZI

    EISNNOA50A

    OVER CURRENT SWITCH, 5-50 AMP, 40 VDC
    ✓ IN STOCK!
    CAN$645.62 Buy New CAN$645.62
    CAN$196.66
    Repair Yours CAN$363.96
    CARLO GAVAZZI EISNNOA20A

    CARLO GAVAZZI

    EISNNOA20A

    DISCONTINUED BY MANUFACTURER, CURRENT SWITCH,2-20AMP,DIN RAIL/PANEL MOUNT,SCREW TERMINAL,TRIP STATUS: ENERGIZED HIGH,SOLID STATE
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$320.56
    CAN$320.56
    CARLO GAVAZZI EI5515PPAP-1

    CARLO GAVAZZI

    EI5515PPAP-1

    PROXIMITY SENSOR, INDUCTIVE, FLAT PACK, POLYCARBONATE HOUSING, TYPE EI 5515, FLATPACK, 10-40 VDC, PNP, 4 PIN PLUG, 200MA, MAKE AND BREAK SWITCH
    ✓ IN STOCK!
    CAN$279.00 Buy New CAN$279.00
    CAN$185.00
    CARLO GAVAZZI EI5515NPAP-1

    CARLO GAVAZZI

    EI5515NPAP-1

    INDUCTIVE PROXIMITY SENSOR, 30MM, NON-FLUSH, 10-40VDC 35X55X15MM, 15MM RANGE, NPN NO/NC, M12 PLUG
    ✓ IN STOCK!
    CAN$279.00 Buy New CAN$279.00
    CAN$213.00
    CARLO GAVAZZI EI5515NPAP

    CARLO GAVAZZI

    EI5515NPAP

    INDUCTIVE PROXIMITY SENSOR, 30MM, NON-FLUSH, 10-40VDC 35X55X15MM, 15MM RANGE, NPN NO/NC, M12 PLUG
    ✓ IN STOCK!
    CAN$256.20 Buy New CAN$256.20
    CAN$194.00
    CARLO GAVAZZI EI3015PPOPS

    CARLO GAVAZZI

    EI3015PPOPS

    PROXIMITY SWITCH INDUCTIVE 15MM RANGE PNP
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$177.72
    CAN$177.72
    CARLO GAVAZZI EI3015NPOSL

    CARLO GAVAZZI

    EI3015NPOSL

    IND PROX SS M30 NPN NO,CAB, INDUCTIVE PROXIMITY SENSOR, M30 STAINLESS STEEL, 2M CABLE, SN 15MM, NON- FLUSH MOUNT, LONG BODY, NPN NO, SUPPLY VOLTAGE 10-40VDC, MAX OUTPUT CURRENT 200 MA, MAX S ...
    ✓ IN STOCK!
    CAN$161.00 Buy New CAN$161.00
    CAN$107.00
    CARLO GAVAZZI EI3015NPOPS

    CARLO GAVAZZI

    EI3015NPOPS

    IND PROX PL M30 NPN NO,CAB, INDUCTIVE PROXIMITY SENSOR, M30 THERMOPLASTIC, 2M CABLE, SN 15MM, NON- FLUSH MOUNT, SHORT BODY, NPN NO, SUPPLY VOLTAGE 10-40VDC, MAX OUTPUT CURRENT 200 MA, MAX SW ...
    ✓ IN STOCK!
    CAN$116.00 Buy New CAN$116.00
    CAN$89.00
    CARLO GAVAZZI EI3010TBOSS

    CARLO GAVAZZI

    EI3010TBOSS

    INDUCTIVE PROXIMITY SENSOR, M30 STAINLESS STEEL, 2M CABLE, SN 10MM, SHORT BODY, SCR NO, SUPPLY VOLTAGE 20-250 VAC, MAX OUTPUT CURRENT 500 MA, MAX SWITCHING FREQUENCY 25HZ, OPERATING TEMPERAT ...
    ✓ IN STOCK!
    CAN$225.40 Buy New CAN$225.40
    CAN$112.77
    CARLO GAVAZZI EI3010TBOSL

    CARLO GAVAZZI

    EI3010TBOSL

    INDUCTIVE PROXIMITY SENSOR, M30 STAINLESS STEEL, 2M CABLE, SN 10MM, LONG BODY, SCR NO, SUPPLY VOLTAGE 20-250 VAC, MAX OUTPUT CURRENT 500 MA, MAX SWITCHING FREQUENCY 25HZ, OPERATING TEMPERATU ...
    ✓ IN STOCK!
    CAN$226.00 Buy New CAN$226.00
    CAN$150.00
    CARLO GAVAZZI EI3010TBOPS

    CARLO GAVAZZI

    EI3010TBOPS

    DISCONTINUED BY MANUFACTURER, PROXIMITY SENSOR, 20-500MA, 20-265VAC, 10MM RANGE, M30 DIAMETER, SHORT BODY, CABLE CONNECTION
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$174.81
    CAN$174.81
    CARLO GAVAZZI EI3010PPOSS

    CARLO GAVAZZI

    EI3010PPOSS

    IND PROX SS M30 PNP NO, CAB, INDUCTIVE PROXIMITY SENSOR, M30 STAINLESS STEEL, 2M CABLE, SN 10MM, FLUSH MOUNT, SHORT BODY, PNP NO, 10-40VDC, 200 MA, 300HZ MAX SWITCHING FREQUENCY, -25C - +70C ...
    ✓ IN STOCK!
    CAN$161.00 Buy New CAN$161.00
    CAN$97.00
    CARLO GAVAZZI EI3010PPOSL

    CARLO GAVAZZI

    EI3010PPOSL

    IND PROX SS M30 PNP NO,CAB, INDUCTIVE PROXIMITY SENSOR, M30 STAINLESS STEEL, 2M CABLE, SN 10MM, FLUSH MOUNT, LONG BODY, PNP NO, SUPPLY VOLTAGE 10-40VDC, MAX OUTPUT CURRENT 200 MA, MAX SWITCH ...
    ✓ IN STOCK!
    CAN$161.00 Buy New CAN$161.00
    CAN$107.00
    CARLO GAVAZZI EI3010PPOPS1

    CARLO GAVAZZI

    EI3010PPOPS1

    DISCONTINUED BY MANUFACTURER, PROXIMITY SWITCH, INDUCTIVE, M30, PNP, NO PLUG, PLASTIC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$103.24
    CAN$103.24
    CARLO GAVAZZI EI3010PPCSS

    CARLO GAVAZZI

    EI3010PPCSS

    INDUCTIVE PROXIMITY SENSOR, BARREL-STYLE, 10 MM DETECTION RANGE, 10-40 VDC, 200 MA, 300 HZ, PNP, N/C, M30 X1.5 THREAD SIZE, FLUSH MOUNT, -25 TO +70 DEGREES C, IP67
    ✓ IN STOCK!
    CAN$161.00 Buy New CAN$161.00
    CAN$123.00
    CARLO GAVAZZI EI3010PPCPL

    CARLO GAVAZZI

    EI3010PPCPL

    IND PROX PL M30 PNP NC,CAB, INDUCTIVE PROXIMITY SENSOR, M30 THERMOPLASTIC, 2M CABLE, SN 10MM, FLUSH MOUNT, LONG BODY, PNP NC, SUPPLY VOLTAGE 10-40VDC, MAX OUTPUT CURRENT 200 MA, MAX SWITCHIN ...
    ✓ IN STOCK!
    CAN$116.00 Buy New CAN$116.00
    CAN$44.50
    CARLO GAVAZZI EI3010NPOPS1

    CARLO GAVAZZI

    EI3010NPOPS1

    DISCONTINUED BY MANUFACTURER, PROXIMITY SWITCH, M30, NPN, NO PLUG, PLASTIC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$124.22
    CAN$124.22
    CARLO GAVAZZI EI1808TBOSS

    CARLO GAVAZZI

    ELECTROMATIC

    EI1808TBOSS

    INDUCTIVE PROXIMITY SENSOR, M18 STAINLESS STEEL, 2M CABLE, SN 8MM, SHORT BODY, SCR NO, SUPPLY VOLTAGE 20-250 VAC, MAX OUTPUT CURRENT 500 MA, MAX SWITCHING FREQUENCY 25HZ, OPERATING TEMPERATU ...
    ✓ IN STOCK!
    CAN$171.60 Buy Surplus As Low As CAN$77.97
    CAN$77.97
    CARLO GAVAZZI EI1808TBOSL

    CARLO GAVAZZI

    EI1808TBOSL

    IND PROX M18SCR NO 8MM SS, INDUCTIVE PROXIMITY SENSOR, M18 STAINLESS STEEL, 2M CABLE, SN 8MM, LONG BODY, SCR NO, SUPPLY VOLTAGE 20-250 VAC, MAX OUTPUT CURRENT 500 MA, MAX SWITCHING FREQUENCY ...
    ✓ IN STOCK!
    CAN$214.20 Buy New CAN$214.20
    CAN$129.00
    CARLO GAVAZZI EI1808TBCSS

    CARLO GAVAZZI

    EI1808TBCSS

    INDUCTIVE PROXIMITY SENSOR, 8 MM SENSING RANGE, 20-250 VAC, 500, MA, 25 HZ, N/C, M18 CYLINDRICAL, THREADED BARREL, STAINLESS STEEL, FLUSH MOUNT, -25 TO +70 DEGREES C, IP67
    ✓ IN STOCK!
    CAN$214.20 Buy New CAN$214.20
    CAN$163.00
    CARLO GAVAZZI EI1808TBCPL

    CARLO GAVAZZI

    EI1808TBCPL

    IND PROX M18 SCR NC 8MM PL, INDUCTIVE PROXIMITY SENSOR, M18 PLASTIC, 2M CABLE, SN 8MM, LONG BODY, SCR NC, SUPPLY VOLTAGE 20-250 VAC, MAX OUTPUT CURRENT 500 MA, MAX SWITCHING FREQUENCY 25HZ, ...
    ✓ IN STOCK!
    CAN$193.20 Buy New CAN$193.20
    CAN$73.00
    CARLO GAVAZZI EI1808PPOSL-1

    CARLO GAVAZZI

    EI1808PPOSL-1

    INDUCTIVE PROXIMITY SENSOR, M18 STAINLESS STEEL, M12 PLUG, SN 8MM, NON- FLUSH MOUNT, LONG BODY PNP NO, SUPPLY VOLTAGE 10-40VDC, MAX OUTPUT CURRENT 200 MA, MAX SWITCHING FREQUENCY 400HZ, OPER ...
    ✓ IN STOCK!
    CAN$151.00 Buy New CAN$151.00
    CAN$115.00
    CARLO GAVAZZI EI1808PPOSL

    CARLO GAVAZZI

    EI1808PPOSL

    IND PROX STEEL M18 PNP NO CBL, INDUCTIVE PROXIMITY SENSOR, M18 STAINLESS STEEL, 2M CABLE, SN 8MM, NON- FLUSH MOUNT, LONG BODY PNP NO, SUPPLY VOLTAGE 10-40VDC, MAX OUTPUT CURRENT 200 MA, MAX ...
    ✓ IN STOCK!
    CAN$151.00 Buy New CAN$151.00
    CAN$115.00
    CARLO GAVAZZI EI1808PPOPL

    CARLO GAVAZZI

    EI1808PPOPL

    INDUCTIVE PROXIMITY SENSOR, M18 STAINLESS STEEL, 2M CABLE, SN 8MM, NON- FLUSH MOUNT, LONG BODY PNP NO, SUPPLY VOLTAGE 10-40VDC, MAX OUTPUT CURRENT 200 MA, MAX SWITCHING FREQUENCY 400HZ, OPER ...
    ✓ IN STOCK!
    CAN$103.00 Buy New CAN$103.00
    CAN$79.00
    CARLO GAVAZZI EI1808PPCSS-1

    CARLO GAVAZZI

    EI1808PPCSS-1

    IND PROX SS M18 PNP NC,PLUG, INDUCTIVE PROXIMITY SENSOR, M18 STAINLESS STEEL, M12 PLUG, SN 8MM, NON- FLUSH MOUNT, SHORT BODY PNP NC, SUPPLY VOLTAGE 10-40VDC, MAX OUTPUT CURRENT 200 MA, MAX S ...
    ✓ IN STOCK!
    CAN$151.00 Buy New CAN$151.00
    CAN$57.50
    CARLO GAVAZZI EI1808NPOSS-1

    CARLO GAVAZZI

    EI1808NPOSS-1

    IND PROX STEEL M18 NPN NO PLUG, INDUCTIVE PROXIMITY SENSOR, M18 STAINLESS STEEL, M12 PLUG, SN 8MM, NON- FLUSH MOUNT, SHORT BODY, NPN NO, SUPPLY VOLTAGE 10-40VDC, MAX OUTPUT CURRENT 200 MA, M ...
    ✓ IN STOCK!
    CAN$151.00 Buy New CAN$151.00
    CAN$91.00
    CARLO GAVAZZI EI1808NPOSL-1

    CARLO GAVAZZI

    EI1808NPOSL-1

    IND PROX SS M18 NPN NO,PLUG, INDUCTIVE PROXIMITY SENSOR, M18 STAINLESS STEEL M12 PLUG, SN 8MM, NON- FLUSH MOUNT, LONG BODY, NPN NO, SUPPLY VOLTAGE 10-40VDC, MAX OUTPUT CURRENT 200 MA, MAX SW ...
    ✓ IN STOCK!
    CAN$151.00 Buy New CAN$151.00
    CAN$115.00
    CARLO GAVAZZI EI1808NPOSL

    CARLO GAVAZZI

    EI1808NPOSL

    IND PROX SS M18 NPN NO,CAB, INDUCTIVE PROXIMITY SENSOR, M18 STAINLESS STEEL, 2M CABLE, SN 8MM, NON- FLUSH MOUNT, LONG BODY, NPN NO, SUPPLY VOLTAGE 10-40VDC, MAX OUTPUT CURRENT 200 MA, MAX SW ...
    ✓ IN STOCK!
    CAN$151.00 Buy New CAN$151.00
    CAN$115.00
    CARLO GAVAZZI EI1808NPOPS1

    CARLO GAVAZZI

    EI1808NPOPS1

    DISCONTINUED BY MANUFACTURER, PROXIMITY SWITCH, INDUCTIVE, M18, NPN, NO PLUG, PLASTIC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$99.72
    CAN$99.72
    CARLO GAVAZZI EI1808NPCPL-1

    CARLO GAVAZZI

    EI1808NPCPL-1

    DISCONTINUED BY MANUFACTURER, PROXIMITY SWITCH, INDUCTIVE PLUG, 10/40VDC, 0.2A
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$19.48
    CAN$19.48
    CARLO GAVAZZI EI1805TBOSL

    CARLO GAVAZZI

    EI1805TBOSL

    IND PROX M18 SCR NO 5MM SS, INDUCTIVE PROXIMITY SENSOR, M18 STAINLESS STEEL, 2M CABLE, SN 5MM, LONG BODY, SCR NO, SUPPLY VOLTAGE 20-250 VAC, MAX OUTPUT CURRENT 500 MA, MAX SWITCHING FREQUENC ...
    ✓ IN STOCK!
    CAN$214.20 Buy New CAN$214.20
    CAN$142.00
    CARLO GAVAZZI EI1805TBOPL

    CARLO GAVAZZI

    EI1805TBOPL

    INDUCTIVE PROXIMITY SENSOR, M18 PLASTIC, 2M CABLE, SN 5MM, LONG BODY, SCR NO, SUPPLY VOLTAGE 20-250 VAC, MAX OUTPUT CURRENT 500 MA, MAX SWITCHING FREQUENCY 25HZ, OPERATING TEMPERATURE -25C - ...
    ✓ IN STOCK!
    CAN$193.20 Buy New CAN$193.20
    CAN$127.00
    CARLO GAVAZZI EI1805TBCSS

    CARLO GAVAZZI

    EI1805TBCSS

    IND PROX M18 SCR NC 5MM SS, INDUCTIVE PROXIMITY SENSOR, M18 STAINLESS STEEL, 2M CABLE, SN 5MM, SHORT BODY, SCR NC, SUPPLY VOLTAGE 20-250 VAC, MAX OUTPUT CURRENT 500 MA, MAX SWITCHING FREQUEN ...
    ✓ IN STOCK!
    CAN$214.20 Buy New CAN$214.20
    CAN$71.00
    CARLO GAVAZZI EI1805-PPOSS

    CARLO GAVAZZI

    EI1805-PPOSS

    PROXIMITY SENSOR, INDUCTIVE, M18, PNP, STEEL, NO CABLE
    ✓ IN STOCK!
    CAN$151.00 Buy New CAN$151.00
    CAN$115.00
    CARLO GAVAZZI EI1805PPOPS

    CARLO GAVAZZI

    EI1805PPOPS

    INDUCTIVE PROXIMITY SWITCH, M18, PNP, NO PLUG, PLASTIC
    ✓ IN STOCK!
    CAN$146.00 Buy New CAN$146.00
    CAN$111.00
    CARLO GAVAZZI EI1805NPOSS-1

    CARLO GAVAZZI

    EI1805NPOSS-1

    IND PROX STEEL M18 NPN NO PLUG, INDUCTIVE PROXIMITY SENSOR, M18 STAINLESS STEEL, M12 PLUG, SN 5MM, FLUSH MOUNT, SHORT BODY, NPN NO, SUPPLY VOLTAGE 10-40VDC, MAX OUTPUT CURRENT 200 MA, MAX SW ...
    ✓ IN STOCK!
    CAN$151.00 Buy New CAN$151.00
    CAN$50.00
    CARLO GAVAZZI EI1805NPOSL-1

    CARLO GAVAZZI

    EI1805NPOSL-1

    IND PROX SS M18 NPN NO,PLUG, INDUCTIVE PROXIMITY SENSOR, M18 STAINLESS STEEL, M12 PLUG, SN 5MM, FLUSH MOUNT, LONG BODY, NPN NO, SUPPLY VOLTAGE 10-40VDC, MAX OUTPUT CURRENT 200 MA, MAX SWITCH ...
    ✓ IN STOCK!
    CAN$151.00 Buy New CAN$151.00
    CAN$91.00
    CARLO GAVAZZI EI-1805NPOSL

    CARLO GAVAZZI

    ELECTROMATIC

    EI-1805NPOSL

    INDUCTIVE PROXIMITY SENSOR, M18 STAINLESS STEEL, 2M CABLE, SN 5MM, FLUSH MOUNT, LONG BODY, NPN NO, SUPPLY VOLTAGE 10-40VDC, MAX OUTPUT CURRENT 200 MA, MAX SWITCHING FREQUENCY 500HZ, OPERATIN ...
    ✓ IN STOCK!
    CAN$131.85 Buy Surplus As Low As CAN$81.45
    CAN$81.45
    CARLO GAVAZZI EI1805NPOPS

    CARLO GAVAZZI

    EI1805NPOPS

    DISCONTINUED BY MANUFACTURER, PROXIMITY SWITCH, INDUCTIVE, M18, NPN, NO PLUG, PLASTIC
    ✓ IN STOCK!
    Buy Surplus As Low As CAN$107.68
    CAN$107.68
    CARLO GAVAZZI EI1805NPOPL

    CARLO GAVAZZI

    EI1805NPOPL

    IND PROX PL M18 NPN NO,CAB, INDUCTIVE PROXIMITY SENSOR, M18 THERMOPLASTIC., 2M CABLE, SN 5MM, FLUSH MOUNT, LONG BODY, NPN NO, SUPPLY VOLTAGE 10-40VDC, MAX OUTPUT CURRENT 200 MA, MAX SWITCHIN ...
    ✓ IN STOCK!
    CAN$103.00 Buy New CAN$103.00
    CAN$62.00
    CARLO GAVAZZI EI1805I020

    CARLO GAVAZZI

    EI1805I020

    PROXIMITY SENSOR, INDUCTIVE, M18, ANALOG, 5MM, NICKEL PLATED BRASS
    ✓ IN STOCK!
    CAN$735.00 Buy New CAN$735.00
    CAN$482.00
    CARLO GAVAZZI EI1204TBOSL

    CARLO GAVAZZI

    ELECTROMATIC

    EI1204TBOSL

    INDUCTIVE PROXIMITY, 4MM SS, 530 SERIES, INDUCTIVE PROXIMITY SENSOR, M12 STAINLESS STEEL, 2M CABLE, SN 4MM, LONG BODY, SCR NO, SUPPLY VOLTAGE 20-250 VAC, MAX OUTPUT CURRENT 500 MA, MAX SWITC ...
    ✓ IN STOCK!
    CAN$132.01 Buy Surplus As Low As CAN$77.99
    CAN$77.99
    CARLO GAVAZZI EI1204PPOSL-1

    CARLO GAVAZZI

    EI1204PPOSL-1

    INDUCTIVE PROXIMITY SENSOR, M12 STAINLESS STEEL, M12 PLUG, SN 4MM, NON- FLUSH MOUNT, LONG BODY, PNP NO, SUPPLY VOLTAGE 10-40VDC, MAX OUTPUT CURRENT 200 MA, MAX SWITCHING FREQUENCY 500HZ, OPE ...
    ✓ IN STOCK!
    CAN$137.00 Buy New CAN$137.00
    CAN$83.00
    Previous Next
    9 10 11 12 13 14 15 16 17 18 19