{"product_id":"mudder-r134a-refrigerator-recharge-kit-dark-blue-19-hose-with-gauge-3-bpv-31-piercing-valves","title":"Mudder R134a Refrigerator Recharge Kit — Dark Blue 19\" Hose with Gauge, 3 BPV-31 Piercing Valves","description":"\u003cp\u003e\u003cstrong\u003eMudder R134a Refrigerator Recharge Kit is a complete metal piercing-valve recharge set that lets you tap R134a cans, read pressures, and retrofit older R-12 ports safely and reliably.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis kit bundles three BPV-31 bullet piercing valves, a 19-inch R134a charging hose with an integrated gauge and can tap, plus a universal retrofit valve — all built from corrosion-resistant metal and finished in dark blue. It's designed for do-it-yourself refrigeration and vehicle A\/C topping-up where R134a is the correct refrigerant. The components are engineered for a tight seal, easy installation with the included hex key, and compatibility with common service port sizes.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the BPV-31 piercing valve work for recharging?\u003c\/h3\u003e\n\u003cp\u003eThe BPV-31 piercing valve punctures a refrigerant can or line to create a secure service point without soldering or complex tools. Once installed, the valve provides a controlled flow path for charging while minimizing leaks thanks to an enlarged sealing surface and strong torque-tested construction.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes three bullet-style BPV-31 valves with hex key and adapters for quick installs.\u003c\/li\u003e\n  \u003cli\u003eSealing area larger than standard O-rings for improved leak resistance.\u003c\/li\u003e\n  \u003cli\u003eTorque-tested and pressure-rated components to withstand typical service conditions.\u003c\/li\u003e\n  \u003cli\u003eCompatible with 1\/4\", 5\/16\" and 3\/8\" outside-diameter tubing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I read pressures and charge different systems with the included gauge?\u003c\/h3\u003e\n\u003cp\u003eYes — the 19-inch charging hose has an integrated gauge calibrated to R134a plus markings for R12 and R22, enabling basic pressure checks and controlled topping-up. The 90-degree push-and-lock coupler provides a firm connection to common service ports and an auto shut-off feature for cleaner operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGauge displays R134a, R12 and R22 pressure scales for quick reference.\u003c\/li\u003e\n  \u003cli\u003e19-inch hose length offers reach for cramped engine bays or refrigerators.\u003c\/li\u003e\n  \u003cli\u003eHalf-inch fitting end fits R12, R22 and 502 service connections.\u003c\/li\u003e\n  \u003cli\u003ePush-lock coupler with auto shut-off reduces refrigerant loss during connect\/disconnect.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat does the universal retrofit valve do and when should I use it?\u003c\/h3\u003e\n\u003cp\u003eThe included retrofit valve converts older R-12 low-side ports to accept R134a service fittings, allowing safe refills of pre-1994 vehicle A\/C systems and other legacy equipment. It installs on a 7\/16\" low-side port and supplies an R134a-compatible access point with a dust cap to keep contaminants out.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for 7\/16\" low-side ports found on older vehicles and some refrigeration units.\u003c\/li\u003e\n  \u003cli\u003eProvides a durable metal retrofit fitting to accept R134a recharge hoses.\u003c\/li\u003e\n  \u003cli\u003eIncludes dust cap to protect the port between uses.\u003c\/li\u003e\n  \u003cli\u003eUseful when attaching the gauge directly to a system that originally used R-12 fittings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know before using this kit?\u003c\/h3\u003e\n\u003cp\u003eDo not use this kit with R-410A refrigerant — it’s built for R134a applications and retrofitting R-12 to R134a. Installation requires minimal clearance and basic hand tools; follow safety guidance, use proper protective equipment, and avoid charging pressurized systems without confirming refrigerant type and capacity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNot suitable for R-410A systems; only for R134a and retrofit to R-12 ports.\u003c\/li\u003e\n  \u003cli\u003eRequires about 2 inches of clearance for the piercing valve installation.\u003c\/li\u003e\n  \u003cli\u003eOne hex key (included) is needed to install the piercing valves.\u003c\/li\u003e\n  \u003cli\u003eIf attaching the gauge to a piercing valve, use the retrofit valve as an adapter when necessary.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? This Mudder kit is aimed at DIYers, independent mechanics, HVAC hobbyists, and fleet technicians who need a portable, durable, and affordable way to top up R134a refrigerant or convert older low-side fittings for R134a service. It's especially useful when you want corrosion-resistant metal fittings, multiple spare piercing valves, and a compact gauge-and-hose solution for occasional maintenance or emergency recharges.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this kit compatible with R-410A?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The Mudder kit is not suitable for R-410A; it is designed for R134a and retrofit R-12 service ports.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include everything to attach the gauge to a piercing valve?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It includes a retrofit valve to connect some gauges, but when using BPV31 directly you may need the retrofit adapter for gauge attachment.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Mudder","offers":[{"title":"Default Title","offer_id":48086564733086,"sku":"B0G4MLRDZ2","price":42.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/mudder-front-packaging.jpg?v=1785900838","url":"https:\/\/northtrailauto.ca\/products\/mudder-r134a-refrigerator-recharge-kit-dark-blue-19-hose-with-gauge-3-bpv-31-piercing-valves","provider":"North Trail Auto","version":"1.0","type":"link"}