3/4″ Heater Hose End Cap – Chrome – Racing Power Company
Rubber Block Off Blank Caps Heater Hose Water Pumps Universal 16mm 5/8" x 2 | eBay
Water Pump Heater Core Rubber Bypass Caps Plugs Choose 5/8" or 3/4" – Jurassic Classic Auto Parts
Dorman - HELP 3/4in Coolant Bypass Caps 2 Piece
Amazon.com: Partuto 1Pc 16mm 0.63" ID Universal Silicone Coolant Cap Intake Vacuum Hose End Plug - Car for Coolant Heater Bypass Vacuum Water Port - Silicone Black : Automotive
Heater Hose Delete Cap (sold individually)
JEGS 511235 Stainless Steel Heater Hose Kit Polished Finish Polished end cap cov - Walmart.com
Polished Aluminum Heater Hose End Cap
K-Tuned - Heater Hose Delete Cap – Tri-State Motorsports
CAP KIT, Heater Core / Heater Hose Block off, 3/4 inch diameter, (2) - #C-8854-60K - National Parts Depot