Review on π BPV31 Piercing Valve with R134a Refrigerant Charging Hose: Gauge, Can Tap, and Compatibility with R-12/R-22 Port by Paul Bijeaux
ok if you change for tools and equipment
The piercing tube is COMPLETELY UNUSEABLE on new cans. I had a set of flow meters, I had to use a hose and a can adapter. The faucet valve worked fine but the hose was useless. This is the old guy who has to pierce the glass. All 134a canisters are made differently these days so you can take a hose from them and not lose your freon. The hole is built into the can like an aerosol can.
- Easy to read control panel
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