https://www.choicerefrigerants.com/choice-r421a daily 0.75 2023-07-21 https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1536169618435-MIB9ZXITEAPVOMUU8SLA/choice_icon_1-03.png Choice R421A The closest Pressure-Tempature match to R-22 https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1536169630784-OMKA0O0VYXVQMXO28ZMT/choice_icon_2-04.png Choice R421A No Unit Modification https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1536169564548-3P1Q3CL4KTCA98AR63QT/choice_icon_3-05.png Choice R421A Does not contain Flammable Components https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1534790984107-14G16EHMMYZQCCUOUJYL/421a+cylinder+v1.png Choice R421A - Choice R-421A https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1552927063685-UJDEPVYNFNX0ZNNVO27O/421a+cylinder+v1.png Choice R421A https://www.choicerefrigerants.com/choice-r421b daily 0.75 2023-07-21 https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1553091533390-7SYAPDI3K0YOHWN23PE2/421b+cylinder+v3.png Choice R421B - Choice R-421A https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1546890296063-STL822DP3D7LPQ34YZWZ/choice_icon_1-03.png Choice R421B The closest Pressure-Tempature match to R-404a https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1546890353315-VLR5FWMHBCDUNS6EZ3GL/choice_icon_2-04.png Choice R421B No Unit Modification https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1546890367175-0HA6L1VMKC4QENBCEDYN/choice_icon_3-05.png Choice R421B Does not contain Hydrocarbons https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1553091026156-C9923854KCBWAUNZ9DV9/421b+cylinder+v3.png Choice R421B https://www.choicerefrigerants.com/home daily 1.0 2021-09-08 https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1546012860154-9DN0DPL7KDP1OBIOJP0C/AC+Unit_website_v4.jpg Home https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1551286765762-9LI6B6QK5JXUDVG92Z2N/421a+cylinder+v1.png Home - Choice R-421A Our award winning R-22 Alternative is the the easy choice for HVAC technicians. With nearly identical pressures to R-22, and low glide, it makes retrofitting mid-temp and comfort cooling systems a breeze. https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1551288041959-1BWA69HR51SPWTNM6BFM/421b+cylinder+v3.png Home - Choice R-421B Designed to retrofit R-22 systems in low-temp applications. It is the easy choice for demanding commercial applications, such as cold storage, ice making and supermarket Pak systems. https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1551288134454-0GMCA6QBJ6VYB12I5V5J/420a+cylinder+v2.png Home - Choice R-420A Our first alternative we developed. With virtually identical pressures to R-12, retrofitting aging ice machines, cold storage and classic cars has never been easier. https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1631125311250-MF72QT5EBXO5BQIM8MDF/3+cylinder+website+color+%281%29.jpg Home https://www.choicerefrigerants.com/choice-r420a daily 0.75 2023-07-21 https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1546010542393-S8KCLQLHHJ19CTJR3JMY/image-asset.png Choice 420A https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1546890662192-GSJMRKXFN7EVARRS5R5G/choice_icon_1-03.png Choice 420A Closest PT match to R12 https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1546890751742-0FWVA963FQYHB2D8TUEA/wrench_blue.png Choice 420A Does not require an oil change https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1546890774379-V5RLPXCNFFQY2NMDYXM9/image-asset.png Choice 420A Non-Flammable https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1553091893448-V9GZWOHI7OUYUZZRCYQD/420a+cylinder+v2.png Choice 420A https://www.choicerefrigerants.com/choice-products daily 0.75 2021-09-08 https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1533672671091-IYWS1COYNWZH70IEPFO5/421a+cylinder+v1.png Products https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1533671960978-KHWJZ492LH6A0HY1BZGU/421b+cylinder+v3.png Products https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1533674069633-7XMK4APIBEAHO7IO0WSM/420a+cylinder+v2.png Products https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1545929040173-5MHL0PU6LTK532X5PAA6/image-asset.png Products Choice R-410A https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1545929075911-HORBSPF3153CH0ZT40N3/image-asset.png Products Choice R-134A https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1547233423650-NTRPRDE238NHBXR1Z2GM/r22+cylinder+v4.png Products Choice R-22 https://www.choicerefrigerants.com/contact-us daily 0.75 2020-03-10 https://www.choicerefrigerants.com/contact daily 0.75 2018-08-13 https://www.choicerefrigerants.com/purchase daily 0.75 2018-08-10 https://www.choicerefrigerants.com/resources daily 0.75 2020-06-16 https://www.choicerefrigerants.com/info daily 0.75 2018-12-14 https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1544797536651-NALT1H4SQBRAVDZP0QF4/choice_icon_1-03.png Info The closest Pressure-Temperature match to … https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1544797571892-LQP1WJVB1OIQNQUEEKX8/choice_icon_2-04.png Info No Unit Modification https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1544797585427-LKAYYEXNAEOWY3U1Q0MO/choice_icon_3-05.png Info Does not contain Flammable Components https://www.choicerefrigerants.com/store-locator daily 0.75 2019-07-24 https://www.choicerefrigerants.com/terms daily 0.75 2019-02-26 https://www.choicerefrigerants.com/choice-brand-awareness daily 0.75 2020-03-03 https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1583252708910-8GEDF1RWOSTOGTOXYO80/3+cylinder+website+color.jpg Choice Brand Awareness https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1583260847059-80D76KHC8CJOR0PXNYBP/choice+logo+9351-01.png Choice Brand Awareness - ask by name Make sure to ask for authentic Choice® 420A, 421A, 421B from a reputable distributor. Our alternative refrigerants -420A, 421A, 421B are not licensed to be sold under any other brand name. https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1583259978753-1C59ZVDKJJ3786CKSJAC/421a+cylinder+v1.png Choice Brand Awareness - inspect 420A, 421A & 421B are only manufactured by Choice® Refrigerants. Our packaging includes the Choice® brand name, as well as our trademark tagline, The Easy Choice®. If these are not present, you’re not buying authentic 420A, 421A, 421B. https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1583261622785-G7DJ7GQN1W384H1KKOYN/choice+qr+935-01.png Choice Brand Awareness - safeguard Each cylinder of 420A, 421A, 421B contains a unique QR code that directs to our website, where you can find up to date information regarding usage, applicability and safety information. If this QR code is not present, you my not be using authentic Choice® refrigerants. https://www.choicerefrigerants.com/shop-1 daily 0.75 2019-06-24 https://www.choicerefrigerants.com/shop-1/choice-condensing-unit monthly 0.5 2023-07-21 https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1551216253762-ZXQAOCB34R424ZUONW49/AC+Unit+website+color+3.jpg Shop - Choice Condensing Unit https://www.choicerefrigerants.com/shop-1/r420a-cylinder monthly 0.5 2025-11-06 https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1551218025396-MB1GE63A306FD2ACKRHJ/420a+cylinder+v2.png Shop - R420A Cylinder https://www.choicerefrigerants.com/shop-1/421-b-cylinder monthly 0.5 2023-08-18 https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1546012062898-KRL6RD3M0VH8PO3TBSW9/421b+cylinder+v3.png Shop - R421B Cylinder https://www.choicerefrigerants.com/shop-1/421a-cylinder monthly 0.5 2025-08-22 https://images.squarespace-cdn.com/content/v1/5b68a25df93fd4e13e97e6e0/1546011962126-EDYSFD8PS4HOVHGFW1QY/421a+cylinder+v1.png Shop - R421A Cylinder