

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The VALUE COLLECTION ZMSCS70214 is a Dash 214 silicone O-ring designed for static and dynamic sealing applications across HVAC, plumbing, and industrial systems. The ring measures 1 inch inside diameter, 1.25 inches outside diameter, and 0.125 inches thick with a round cross section. Rated at 70 Shore A hardness, this silicone compound handles a wide service temperature range from -80 degrees F to 450 degrees F, making it a reliable choice in systems that see extreme heat cycling or outdoor exposure. Licensed tradespeople and maintenance technicians reach for silicone O-rings when standard nitrile or EPDM compounds fall short on temperature or ozone resistance.
This O-ring suits residential and light commercial applications where good dry heat resistance and weather or ozone stability are required. Common install scenarios include pump housings, valve stems, flange seals, and fluid fittings in HVAC equipment, plumbing assemblies, and general mechanical systems. It offers limited oil resistance, so it is best suited for non-petroleum fluid paths, chemical lines, or dry-heat environments rather than heavy oil-wetted systems. Each package contains 50 pieces, making it practical for service vehicles and shop inventory.
Designed as a standard Dash 214 O-ring replacement suitable for any gland or fitting that accepts a 1 inch ID round-cross-section seal in silicone compound.
Shut off fluid flow and depressurize the system completely before removing the existing O-ring. Inspect the gland groove for nicks, burrs, or corrosion that could compromise the seal. Apply a compatible silicone-based lubricant to ease installation without stretching or twisting the ring. A licensed plumber, HVAC technician, or qualified mechanic should verify that silicone compound is appropriate for the fluid type and pressure rating of the application before installation.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!