VACUUM RETENTION VALVE Back Catalog number: 229 Availability: In the manufacturer's stock Price on request - + Recommended 1002734380 1/4 " Flow Check Valve for Aq37X Price on request B-2P4T Brass Quarter-Turn Instrument Plug Valve, 1/8 in Price on request SS4CPA2RT50 Stainless Steel 1PiecePCPA Adj Check Valve Price on request