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Check Valve


Centek’s line of exhaust systems check valves are made of the same fiberglass and fire retardant resins used to produce Vernatube, the UL listed tubing line. These fittings are lightweight, strong, non-corroding, and durable. Fittings are installed easily and their outside dimensions are compatible with tubing and approved marine rubber exhaust hoses.

  A B C D
  NOM. O.D. I/O LENGTH LENGTH DIAMETER
Part # INCHES MM INCHES MM INCHES MM INCHES MM
1200403 1.5 38 2 51 11.79 299 4.34 110
1200263 1.63 41 1.5 38 11.79 299 4.34 110
1200398 1.88 48 1.88 48 9 229 4.34 110
1200328 2 51 1.5 38 8.37 213 4.34 110
1200426 2.25 57 3.19 81 16.13 410 5.58 142
1200449 2.38 60 3.31 84 18.69 475 7.06 179
1200307 2.5 64 3 76 16.13 410 5.58 142
1200274 3 76 3.5 89 18.66 474 7.06 179
1200411 3.5 89 3.5 89 20.3 516 8.09 205
1200369 4 102 3.5 89 21 533 9.06 230
1200479 4.5 114 5 127 24.63 626 11.15 283
1200377 5 127 4.38 111 24.25 616 11.15 283
1200386 6 152 5 127 26.2 665 12.2 310
Displaying products 1 - 47 of 47 results
unavailable
Centek 1200377YCS 5" Check Valve Assembly (YQF,CS) /EA
Retail Price: $1,423.27
Your Price: $1,098.82
You Save: $324.45 (23 %)
Centek 1200377YCS 5" Check Valve Assembly (YQF,CS) /EA
Centek 1200377YCS 5.00" Check Valve Assembly (YQF,CS) /EA
Centek 1200386 Check Valve 6
Centek 1200386 6" Check Valve Assembly /EA
Retail Price: $841.89
Your Price: $649.97
You Save: $191.92 (23 %)
Centek 1200386 6" Check Valve Assembly /EA
Centek Inline Check Valve 6"
Centek 1200695 Check Valve 8
Centek 1200695 8" Check Valve /EA
Retail Price: $811.45
Your Price: No Longer Available.
Centek 1200695 8" Check Valve /EA
Centek Check Valve
unavailable
Centek 1200377CS 5" Check Valve Assembly (CS) /EA
Retail Price: $791.30
Your Price: $610.91
You Save: $180.39 (23 %)
Centek 1200377CS 5" Check Valve Assembly (CS) /EA
Centek 1200377CS 5.00" Check Valve Assembly (CS) /EA
unavailable
Centek 1200377x 5" Check Valve (Large Body) /EA
Retail Price: $586.62
Your Price: $452.89
You Save: $133.73 (23 %)
Centek 1200377x 5" Check Valve (Large Body) /EA
Centek 1200377X 5.00" Check Valve (Large Body) /EA
Centek 1200377 Check Valve - 5
Centek 1200377 5" Check Valve Assembly /EA
Retail Price: $586.62
Your Price: $452.89
You Save: $133.73 (23 %)
Centek 1200377 5" Check Valve Assembly /EA
Centek Check Valve
Centek 1200479 4.5" Check Valve /EA
Retail Price: $582.43
Your Price: $449.66
You Save: $132.77 (23 %)
Centek 1200479 4.5" Check Valve /EA
Check Valve
unavailable
Centek 1200369GCS 4" Check Valve Assembly (GC,CS) /EA
Retail Price: $558.54
Your Price: $431.21
You Save: $127.33 (23 %)
Centek 1200369GCS 4" Check Valve Assembly (GC,CS) /EA
Centek 1200369GCS 4.00" Check Valve Assembly (GC,CS) /EA
Centek 1200425 10" - 12" Reducer Coupling /EA
Retail Price: $467.92
Your Price: $361.25
You Save: $106.67 (23 %)
Centek 1200425 10" - 12" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200411 3.5" Check Valve /EA
Retail Price: $386.58
Your Price: $298.45
You Save: $88.13 (23 %)
Centek 1200411 3.5" Check Valve /EA
Check Valve
Centek 1200369 4
Centek 1200369 4" Check Valve Assembly /EA
Retail Price: $386.58
Your Price: $298.45
You Save: $88.13 (23 %)
Centek 1200369 4" Check Valve Assembly /EA
Centek Check Valve
unavailable
Centek 1200400P 2" x 4" Reducer Coupling (PYQF) /EA
Retail Price: $370.98
Your Price: $286.41
You Save: $84.57 (23 %)
Centek 1200400P 2" x 4" Reducer Coupling (PYQF) /EA
Centek 1200400P 2" x 4" Reducer Coupling (PYQF) /EA
Centek 1200534 8" x 8.63" Reducer Coupling /EA
Retail Price: $353.41
Your Price: $272.84
You Save: $80.57 (23 %)
Centek 1200534 8" x 8.63" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200603 6" x 8.63" Reducer Coupling /EA
Retail Price: $349.99
Your Price: $270.20
You Save: $79.79 (23 %)
Centek 1200603 6" x 8.63" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200274 Check Valve - 3
Centek 1200274 3" Check Valve Assembly /EA
Retail Price: $327.55
Your Price: $252.88
You Save: $74.67 (23 %)
Centek 1200274 3" Check Valve Assembly /EA
Centek Check Valve
Centek 1200426 2.25" Check Valve /EA
Retail Price: $307.39
Your Price: $237.32
You Save: $70.07 (23 %)
Centek 1200426 2.25" Check Valve /EA
Check Valve
Centek 1200449 2.38" Check Valve /EA
Retail Price: $298.25
Your Price: $230.26
You Save: $67.99 (23 %)
Centek 1200449 2.38" Check Valve /EA
Check Valve
Centek 1200392 6.63" x 8" Reducer Coupling /EA
Retail Price: $276.58
Your Price: $213.53
You Save: $63.05 (23 %)
Centek 1200392 6.63" x 8" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200491 5" x 8" Reducer Coupling /EA
Retail Price: $265.85
Your Price: $205.24
You Save: $60.61 (23 %)
Centek 1200491 5" x 8" Reducer Coupling /EA
Exhaust Reducer Coupling
unavailable
Centek 1200328G 2" Check Valve Assembly (GC) /EA
Retail Price: $261.36
Your Price: $201.78
You Save: $59.58 (23 %)
Centek 1200328G 2" Check Valve Assembly (GC) /EA
Centek 1200328G 2.00" Check Valve Assembly (GC) /EA
Centek 1200307 2.5
Centek 1200307 2.5" Check Valve Assembly /EA
Retail Price: $215.32
Your Price: $166.24
You Save: $49.08 (23 %)
Centek 1200307 2.5" Check Valve Assembly /EA
Check Valve
unavailable
Centek 1200529Y 2.38" x 2.5" Reducer Coupling (YQF) /EA
Retail Price: $202.67
Your Price: $156.47
You Save: $46.20 (23 %)
Centek 1200529Y 2.38" x 2.5" Reducer Coupling (YQF) /EA
Centek 1200529Y 2.38" X 2.50" Reducer Coupling (YQF) /EA
Centek 1200398 1.88" Check Valve /EA
Retail Price: $177.28
Your Price: $136.87
You Save: $40.41 (23 %)
Centek 1200398 1.88" Check Valve /EA
Check Valve
Centek 1200263 1.63" x 1.63" Check Valve Assembly /EA
Retail Price: $160.16
Your Price: $123.65
You Save: $36.51 (23 %)
Centek 1200263 1.63" x 1.63" Check Valve Assembly /EA
Check Valve
Centek 1200403 1.5" Check Valve Assembly /EA
Retail Price: $147.98
Your Price: $114.25
You Save: $33.73 (23 %)
Centek 1200403 1.5" Check Valve Assembly /EA
An added measure of safety, check valves help prevent the back flow of water and subsequent engine damage.
Centek 1200328 2
Centek 1200328 2" Check Valve Assembly /EA
Retail Price: $161.29
Your Price: $109.43
You Save: $51.86 (32 %)
Centek 1200328 2" Check Valve Assembly /EA
Centek Marine Wet Exhaust Check Valve 2" Inlet/Outlet
Centek 1200265 4" x 6" Reducer Coupling /EA
Retail Price: $123.25
Your Price: $95.16
You Save: $28.09 (23 %)
Centek 1200265 4" x 6" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200309 1.88" x 2" Reducer Coupling /EA
Retail Price: $118.08
Your Price: $91.16
You Save: $26.92 (23 %)
Centek 1200309 1.88" x 2" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200390 1.5" x 1.63" Reducer Coupling /EA
Retail Price: $115.41
Your Price: $89.10
You Save: $26.31 (23 %)
Centek 1200390 1.5" x 1.63" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200639 3" x 5" Reducer Coupling /EA
Retail Price: $97.78
Your Price: $75.49
You Save: $22.29 (23 %)
Centek 1200639 3" x 5" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200447 1.63" x 2.38" Reducer Coupling /EA
Retail Price: $66.70
Your Price: $51.50
You Save: $15.20 (23 %)
Centek 1200447 1.63" x 2.38" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200400 2" x 4" Reducer Coupling /EA
Retail Price: $60.48
Your Price: $46.70
You Save: $13.78 (23 %)
Centek 1200400 2" x 4" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200336 2" x 3.5" Reducer Coupling /EA
Retail Price: $51.36
Your Price: $39.65
You Save: $11.71 (23 %)
Centek 1200336 2" x 3.5" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200318 2.38" x 2.88" Coupling /EA
Retail Price: $50.22
Your Price: $38.78
You Save: $11.44 (23 %)
Centek 1200318 2.38" x 2.88" Coupling /EA
Exhaust Reducer Coupling
Centek 1200451 2.38" x 3" Reducer Coupling /EA
Retail Price: $49.07
Your Price: $37.88
You Save: $11.19 (23 %)
Centek 1200451 2.38" x 3" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200569 2.25" x 3" Reducer Coupling. /EA
Retail Price: $48.69
Your Price: $37.59
You Save: $11.10 (23 %)
Centek 1200569 2.25" x 3" Reducer Coupling. /EA
Exhaust Reducer Coupling
Centek 1200529 2.38" x 2.5" Reducer Coupling /EA
Retail Price: $46.42
Your Price: $35.84
You Save: $10.58 (23 %)
Centek 1200529 2.38" x 2.5" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200371 2" x 2.88" Reducer Coupling /EA
Retail Price: $45.95
Your Price: $35.48
You Save: $10.47 (23 %)
Centek 1200371 2" x 2.88" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200431 2.25" x 2.38" Reducer Coupling /EA
Retail Price: $42.23
Your Price: $32.60
You Save: $9.63 (23 %)
Centek 1200431 2.25" x 2.38" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200396 2" x 2.38" Reducer Coupling /EA
Retail Price: $41.85
Your Price: $32.31
You Save: $9.54 (23 %)
Centek 1200396 2" x 2.38" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200533 1.63" x 1.75" Reducer Coupling /EA
Retail Price: $41.46
Your Price: $32.01
You Save: $9.45 (23 %)
Centek 1200533 1.63" x 1.75" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200503 1.5" x 1.88" Reducer Coupling /EA
Retail Price: $41.08
Your Price: $31.71
You Save: $9.37 (23 %)
Centek 1200503 1.5" x 1.88" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200505 1.75" x 2.38" Reducer Coupling /EA
Retail Price: $41.08
Your Price: $31.71
You Save: $9.37 (23 %)
Centek 1200505 1.75" x 2.38" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200435 Exhaust Reducer Coupling 1.5 to 1.75
Centek 1200435 1.5" x 1.75" Reducer Coupling /EA
Retail Price: $39.17
Your Price: $30.24
You Save: $8.93 (23 %)
Centek 1200435 1.5" x 1.75" Reducer Coupling /EA
Centek Exhaust Reducer Coupling 1.5 to 1.75
Centek 1200394 1.75" x 2" Reducer Coupling /EA
Retail Price: $39.94
Your Price: $30.18
You Save: $9.76 (24 %)
Centek 1200394 1.75" x 2" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200266 1.63" x 2" Reducer Coupling /EA
Retail Price: $36.14
Your Price: $27.32
You Save: $8.82 (24 %)
Centek 1200266 1.63" x 2" Reducer Coupling /EA
Exhaust Reducer Coupling
Centek 1200532 1.25" x 1.63" Reducer Coupling /EA
Retail Price: $34.62
Your Price: $26.73
You Save: $7.89 (23 %)
Centek 1200532 1.25" x 1.63" Reducer Coupling /EA
Exhaust Reducer Coupling
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