Power Products 800333P Inline Quick Release Valve.
Cross Reference: Bendix 8003333, GT Development 4000-6, New Star S-C069, Phillips 12-811, Sloan 401146, Tectran 801095, Automann 170.800333, Dayton AV800333, Euclid E-BN800333N, Keene K800333
BAY D61