Faucetnut vs GAS Checkvalve: specs compared
Updated 05 September 2026.
5
specs differ
Faucetnut and GAS Checkvalve differ on 5 specs: designation, size / thread, fitting form, seals on, rating / role.
| Spec | Faucetnut | GAS Checkvalve |
|---|---|---|
| Designation | 7/8"-14 (faucet to shank) | 1/4" FFL x 1/4" MFL |
| Size / thread | 7/8"-14 internal thread | 1/4" FFL (7/16-20 UNF) inlet and 1/4" MFL (7/16-20 UNF) outlet, or barb ends |
| Fitting form | knurled coupling nut, front of shank | one-way flare check valve |
| Seals on | metal to metal as the nut draws the faucet body onto the shank nose | flare faces at each flare end; barb under a clamp on barb versions |
| Rating / role | the nut that locks a beer faucet onto the front of a shank | passes CO2 toward the keg and blocks beer or foam from returning up the gas line |
Questions and answers
How do Faucetnut and GAS Checkvalve compare?
Faucetnut and GAS Checkvalve differ on 5 specs: designation, size / thread, fitting form, seals on, rating / role.