- Sku: 22-0019
HC-GSK12 1/2" High-Pressure Rubber Gaskets – Hose Seal Rings, 10 or 100 Pack
💸 BEST PRICE
We back all products with a 1-year guarantee.
📦 Free Shipping Policy
Free shipping on orders $50+ to the lower 48 states. Alaska, Hawaii, Puerto Rico and U.S. territories ship at standard rates.
HCPRO Black Knight HC-GSK12 1/2" high-pressure rubber gaskets are replacement seal rings for large hose and service connections — a leak-tight seal that keeps refrigerant where it belongs.
Key features
- Fits 1/2" connections — hoses, adapters and service fittings
- High-pressure elastomer — holds a positive seal on charging and recovery lines
- -40°F to 250°F — rated for R-410A, R-22, R-134a, R-404A, R-1234YF, R-32 and R-454B service
- Shop and truck packs — 10 or 100 gaskets
Built for
Re-sealing worn 1/2" connections instead of replacing the whole fitting.
Have a question?

HC-GSK12 1/2" High-Pressure Rubber Gaskets – Hose Seal Rings, 10 or 100 Pack
10 Gaskets
Product Highlights
Full specifications
Shop A Wide HVAC Supply Inventory. Free shipping on any order over $50!
FREE SHIPPING — Orders $50+ · Lower 48 states

