1.75 Inch O-ring Heater Pump Union O-125 90-423-1000

Generic 1 3/4" inner diameter O-ring O-125, heater union is 1/8 inch thick.

Used in ABS Side Mount 1-1/2", ABS Side Mount 2", Clearwater II 2006-Present, Gamma III, Mytilus B, Star Polymeric ST35, Star Polymeric ST40, Star Polymeric ST50, Star Polymeric ST80, UltraClean Pro.

Use Lube Tube to lubricate o-rings and gaskets.

Fits heater tailpiece 417-4090 for 1 1/2 inch plumbing.

Other model 1 3/4" inner diameter o-ring models that are 1/8 inch thick which this oring replaces include:

90-423-5224,10-014EP70 , 133-7470-10 , 14 , 14-110-2000 , 191474 , 192115 , 224 , 224-7470 , 224-7470-10 , 30-027EP70 , 31240 , 31B0035 , 3226-252 , 35505-1116 , 39010000 , 4600-1474 , 4656-09 , 47-314-1077 , 520907 , 548308 , 568-224 , 608158 , 608506 , 788379692124 , 805-0014 , 805-0224 , 87-106-1184 , 90-423-1000 , E-18-S1 , E-18-S2 , EF07 , O-125 , O-253 , R172393 , RMG-01-680 , SPX1022CZ2