--- product_id: 14349699 title: "26721 O-Ring & Gasket Air Conditioning System Seal Kit" brand: "four seasons" price: "$27.03" currency: USD in_stock: true reviews_count: 8 category: "Four Seasons" url: https://www.desertcart.us/products/14349699-26721-o-ring-and-gasket-air-conditioning-system-seal-kit store_origin: US region: United States of America --- # R134a-specific green rubber Reliable up to 40°C OE-grade precision fit 26721 O-Ring & Gasket Air Conditioning System Seal Kit **Brand:** four seasons **Price:** $27.03 **Availability:** ✅ In Stock ## Summary > ❄️ Seal the deal on cool comfort with Four Seasons precision! ## Quick Answers - **What is this?** 26721 O-Ring & Gasket Air Conditioning System Seal Kit by four seasons - **How much does it cost?** $27.03 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/14349699-26721-o-ring-and-gasket-air-conditioning-system-seal-kit) ## Best For - four seasons enthusiasts ## Why This Product - Trusted four seasons brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Comprehensive Seal Kit:** Includes a variety of O-rings and gaskets to cover your entire AC system conversion or repair needs. - • **Precision OE-Grade Fit:** Engineered to meet or exceed original equipment standards for flawless installation and performance. - • **Fast & Reliable Delivery:** Get your AC system back up and running quickly with a trusted brand and prompt shipping. - • **R134a-Ready Green O-Rings:** Specifically designed for modern refrigerants, ensuring leak-proof, long-lasting AC system integrity. - • **Durable Temperature Resistance:** Maintains seal integrity up to 40°C, perfect for demanding automotive environments. ## Overview The Four Seasons 26721 O-Ring & Gasket Air Conditioning System Seal Kit offers a vehicle-specific, OE-quality solution for AC system repairs and R12 to R134a conversions. Featuring durable green rubber O-rings designed for modern refrigerants and reliable temperature resistance up to 40°C, this kit ensures a leak-proof, long-lasting seal. Trusted by professionals and DIYers alike, it comes with a 120-day warranty and fast delivery to keep your ride cool and efficient. ## Description O-Ring & Gasket Air Conditioning System Seal Kit Review: Needed for an R12 to R134a Conversion - Why did you pick this product vs others?: I was in need of O-rings for the conversion of my 1993 Ford F150 from R12 to R134a. Apparently, the green O-rings are specific to R134a. For my application there was enough o-rings to select from so that I didn't have to purchase any more. I also have a lot left over. It's a little bit of a challenge to match things up because of the OEM o-rings being mashed down and basically deformed at this point. In the end, everything worked out and I'm up and running. Review: Excellent product - When it came to do the work had forgotten to get me a set of o rings order and delivered fast . some left over as I did not do a full extensive refit but definately not short if you are doing the whole 9 yards ## Features - Meets or exceeds OE design and performance - Part number: 26721 - Fit type: Vehicle Specific - Package Dimensions: 0.254 H x 15.494 L x 5.588 W (centimeters) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0019ICVEU | | Best Sellers Rank | #767,390 in Automotive ( See Top 100 in Automotive ) #194 in Automotive Replacement Air Conditioning O-Rings & O-Ring Kits | | Brand Name | Four Seasons | | Color | Green | | Customer Reviews | 4.6 4.6 out of 5 stars (252) | | Global Trade Identification Number | 00096361267213 | | Included Components | O-Ring | | Item Type Name | O-Ring | | Item Weight | 4.54 g | | Manufacturer | Four Seasons | | Material Type | Green Rubber O-Rings, Metal spring O-Ring | | Model | 26721 | | Part Number | 26721 | | Set Name | Air Conditioning System O-Ring & Gasket Seal Kit | | Temperature Range | 40 Degrees Celsius | | UPC | 096361267213 | | Unit Count | 1.0 Count | | Warranty Description | 120 Day | ## Product Details - **Brand:** Four Seasons - **Color:** Green - **Material:** Green Rubber O-Rings, Metal spring O-Ring - **Temperature Range:** 40 Degrees Celsius - **UPC:** 096361267213 ## Images ![26721 O-Ring & Gasket Air Conditioning System Seal Kit - Image 1](https://m.media-amazon.com/images/I/719mcg+owmL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Needed for an R12 to R134a Conversion *by M***A on July 5, 2025* Why did you pick this product vs others?: I was in need of O-rings for the conversion of my 1993 Ford F150 from R12 to R134a. Apparently, the green O-rings are specific to R134a. For my application there was enough o-rings to select from so that I didn't have to purchase any more. I also have a lot left over. It's a little bit of a challenge to match things up because of the OEM o-rings being mashed down and basically deformed at this point. In the end, everything worked out and I'm up and running. ### ⭐⭐⭐⭐⭐ Excellent product *by E***E on February 10, 2024* When it came to do the work had forgotten to get me a set of o rings order and delivered fast . some left over as I did not do a full extensive refit but definately not short if you are doing the whole 9 yards ### ⭐⭐⭐⭐⭐ BEST fitting O-Rings for my OLD Ford A/C ! *by C***3 on June 26, 2023* Normal O-Rings from the auto parts store ARE NOT thick enough & don't work. THESE WORK VERY GOOD. GREAT ! ! ! ! ! --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/14349699-26721-o-ring-and-gasket-air-conditioning-system-seal-kit](https://www.desertcart.us/products/14349699-26721-o-ring-and-gasket-air-conditioning-system-seal-kit) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-17*