O-Ring Depot 133-152RP 131-019RP Gasket Set Fits Taco Pump 3" Heavy Duty TPU

Confirmed Pump Compatibility: Taco 100 Series Circulator Pumps Taco 1600 Series Inline Commercial Pumps (All models with 3" flanged connections) Taco 2400 Series High-Capacity Circulators (Specifically Model 2400-70/3 and variants 2400-60S, 2400-65S, 2400-70S) Taco 121 - 138 Series Legacy Frame Pumps (Models 121, 122, 131, 132, 133, 138) 💡 Why This Kit Wins The Upgraded Squeeze: We swapped the old, easily distorted flat rubber profile for a high-compression ring design that clamps down like a hungry pit bull on a steak. Chemical Defenses: This TPU takes scorching hot boiler fluid and aggressive chemical treatments straight to the chin and just asks for seconds.