You are looking at a pair of brand new Adapters: 1/4 " X 5/16 " swivel female connector, straight adapter with Manual ball Valve , Needed by your AC service tools to attach to AC systems/tools with 1/4" SAE to system port with 5/16 SAE connector for recovery/charging/diagnosis, adding oil/dye, etc.)! Its the same size and does the same thing as Yellowjacket item 41124; PLUS a hand valve on each adapter, 2 in a package for the low price. FEATURES: One end, 1/4" SAE Male flare the other end, 5/16 Female flare The female connector has the valve depressing device to open the valve when engaged Stainless steel ball valve in between. 1/4 turn to full open or close. straight solid Brass body, no hose. Purpose of use: Serve as a connector/converter/adapter between 1/4 " SAE service tool to work on 5/16" system ports. 2 in package, one blue, one red on the valve handle Less dead space between connectors, means less non-compressable gas to the AC system. In stock and ready to ship. NOTE: other model/sizes of adapters available 1/4" SAE) to 5/16" and 1/2" ACME in different combinations, make sure to get the right adapter you need. Other Sizes of HVAC and Car AC Adapters/Connectors/Couplers, Availavle from w3.viot.us Model: CV22p: CV23bp: CV23p: CV24p: CV22S: CV23S: CV32S: Male Fitting: 1/4" flare 1/2" ACME 1/4" flare 5/16" flare Female Fitting: 1/4"flare 5/16" flare 5/16" flare 1/4"flare 1/4"flare 5/16"flare 1/4"flare With Valve? Yes No Yes Application adapter to sizes as shown above for refrigeration services; with valve for flow control Model: C24: C42: CB2: CB3: CB66: CB86: AT212: Male Fitting: 1/4" flare 1/2" ACME 1/4" Barbed 5/16" Barbed 3/8" Barbed 1/2" Barbed 1/4" flare Female Fitting: 1/2"ACME 1/4"flare 1/4"flare 1/4"flare 3/8"flare 3/8"flare 1/4"flare+T:1/8FNPT With Valve? No or NA Application vacuum pump flare port and convert it to a tube/pipe/tubing connection Tee/add vacuum gauge Model: AT222: Tap1: Tap2: Tap3: QCP: QCPL: QCPH: Male Fitting: 1/4"flare, T-1/4MFL 1/4" flare N/A. Quick Coupler to low side port 1/2" ACME 14MMF; & adapter to 1/4"Male Flare 1/4"flare N/A w/14mm Female Female Fitting: 1/4"flare 1/2" ACME to Canister 1/2" ACME to canister 1/2" ACME to canister 14&16MM Quick Couplers to car AC ports With Valve? No or NA No Yes No Application Tee adapter for a micron gauge R134a Can Tapping/Car AC Charging tool Attach to Car AC system ports to get access to the system for diagnosis/Charging/Recovery Model: PPort: PPortV: PPortB2 PPortB6 Male Fitting: 3/8" Male NPT Female Fitting: 3/8"flare+ T-1/4 3/8"flare+ T-1/4 1/4" Barb 3/8" Barb With Valve? No Yes No Application Pump Port Pump Port with Valve Pump Port to Tubing Connection Add a map to your own listings. FREE Trial!