--- product_id: 1571173 title: "LeakStop12 A/C Seal Treatment (4 oz. can)" brand: "red tek" price: "₱3497" currency: PHP in_stock: true category: "Red Tek" url: https://www.desertcart.ph/products/1571173-leakstop12-a-c-seal-treatment-4-oz-can store_origin: PH region: Philippines --- # Saves cost vs. part replacement Seals leaks in seconds Reduces refrigerant emissions LeakStop12 A/C Seal Treatment (4 oz. can) **Brand:** red tek **Price:** ₱3497 **Availability:** ✅ In Stock ## Summary > 🔧 Seal it fast, save big, and stay green! ## Quick Answers - **What is this?** LeakStop12 A/C Seal Treatment (4 oz. can) by red tek - **How much does it cost?** ₱3497 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/1571173-leakstop12-a-c-seal-treatment-4-oz-can) ## Best For - red tek enthusiasts ## Why This Product - Trusted red tek brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Instant Leak Sealing:** Apply in minutes, seal in seconds—no downtime, no hassle. - • **Safe & User-Friendly:** Less toxic than methanol-based treatments, designed for easy, worry-free use. - • **Cost-Effective Repair:** Avoid expensive part replacements—restore worn seals at a fraction of the cost. - • **Eco-Friendly Solution:** Minimize refrigerant leaks and reduce your carbon footprint effortlessly. - • **Universal Compatibility:** Works seamlessly with R134a, R12, PAG & Ester lubricants, seals, gaskets, hoses, compressors, and o-rings. ## Overview RED TEK LeakStop12 is a fast-acting A/C seal treatment that restores and pressurizes worn rubber seals and o-rings in automotive and refrigeration systems. Compatible with common refrigerants and lubricants, it offers a cost-effective, eco-friendly alternative to costly part replacements, sealing leaks in seconds while reducing harmful refrigerant emissions. Safe and easy to use, LeakStop12 is trusted by professionals and DIYers alike to extend system life and performance. ## Description RED TEK LeakStop, an a/c seal treatment from Thermofluid Technologies, is a formulated system designed to seal rubber parts and o-rings of air conditioning and refrigeration systems. LeakStop pressurizes and restores brittle o-rings that have been worn or damaged. Operation: Easy to use. Installs in minutes. Seals in seconds. Lower Cost: Less expensive than replacing leaking o-ring and rubber seals. Saves time and money. Compatibility: Compatible with most common refrigeration materials and lubricants including R134a, R12, metal components, mineral and synthetic(Ester and PAG) lubricants, seals, gaskets, hoses, compressors, and o-rings. Environment: Helps the environment by reducing refrigerant emissions. Safety: Safe and easy to use. LeakStop is less toxic than other seal treatments that contain poisonous methanol. IMPORTANT INFORMATION: This product cannot be returned because it uses flammable liquids and gases, is classified as a hazardous material, or meets other criteria. ## Features - Operation: Easy to use. Installs in minutes. Seals in seconds. - Lower Cost: Less expensive than replacing leaking o-ring and rubber seals. Saves time and money. - Compatibility: Compatible with most common refrigeration materials and lubricants including R134a, R12, metal components, mineral and synthetic(Ester and PAG) lubricants, seals, gaskets, hoses, compressors, and o-rings. - Environment: Helps environment by reducing refrigerant emissions. - Safety: Safe and easy to use. Less toxic than other seal treatments that contain poisonous methanol. - IMPORTANT INFORMATION: This product cannot be returned because it uses flammable liquids and gases, is classified as a hazardous material, or meets other criteria. This is a non refundable, non returnable product. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00DJDYR7C | | Best Sellers Rank | #103,469 in Automotive ( See Top 100 in Automotive ) #43 in Refrigerants | | Brand | RED TEK | | Customer Reviews | 4.3 4.3 out of 5 stars (92) | | Date First Available | June 21, 2013 | | Item Weight | 8 ounces | | Manufacturer | Thermofluid Technologies | | Manufacturer Part Number | 401 | | Product Dimensions | 11 x 8 x 7 inches | ## Images ![LeakStop12 A/C Seal Treatment (4 oz. can) - Image 1](https://m.media-amazon.com/images/I/71HWsnEvBnL.jpg) ## Questions & Answers **Q: I have a 1969 buick with factory a/c. can leak stop be used in the old system? can i recharge with redtek refrigerant? how many cans would i need?** A: Yes, you can use the LeakStop in your system. Be aware it does contain 2 oz. of refrigerant in it, so you would deduct this from the amount of refrigerant you install. The 6 oz can of refrigerant is equivalent to 18 oz. of R12. Your low side PSI should be between 30-38. **Q: Works on car ?** A: Fortunately I had other ac (car) issues before I could use it . Too many reasons why one NEVER use ANY ac sealant products . They can change a fixable issue into a way more expensive fix . **Q: Is this loaded on the low side or high side on a r12 a/c system? i have a r12 a/c on my car.** A: Install on low side port. **Q: Can I use this on my mazda 3 2007 that is leaking at the compressor shaft?** A: Front seal leaks on my 150k mile 85 Corvette. This seemed to slow it down considerably. YMMV. HTH. Joe K ## Frequently Bought Together - RED TEK LeakStop12 A/C Seal Treatment (4 oz. can) - Generic Arctic Air for R12, 3 cans and a Brass Charging Gauge - RED TEK ProSeal12 A/C Seal Treatment (4 oz. can) --- ## 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.ph/products/1571173-leakstop12-a-c-seal-treatment-4-oz-can](https://www.desertcart.ph/products/1571173-leakstop12-a-c-seal-treatment-4-oz-can) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-10-08*