---
product_id: 191020115
title: "AC Leak Freeze 45309 Leak Sealant, Easy Application, HVAC, .5 oz."
brand: "rectorseal"
price: "482 Lei"
currency: RON
in_stock: true
reviews_count: 8
url: https://www.desertcart.ro/products/191020115-ac-leak-freeze-45309-leak-sealant-easy-application-hvac-5
store_origin: RO
region: Romania
---

# Permanent micro-leak sealing Standard 1/4" adapter for easy use Nano-particle dual sealant tech AC Leak Freeze 45309 Leak Sealant, Easy Application, HVAC, .5 oz.

**Brand:** rectorseal
**Price:** 482 Lei
**Availability:** ✅ In Stock

## Summary

> ❄️ Seal the deal on leaks before they freeze your workflow!

## Quick Answers

- **What is this?** AC Leak Freeze 45309 Leak Sealant, Easy Application, HVAC, .5 oz. by rectorseal
- **How much does it cost?** 482 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/191020115-ac-leak-freeze-45309-leak-sealant-easy-application-hvac-5)

## Best For

- rectorseal enthusiasts

## Why This Product

- Trusted rectorseal brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted by Tradesmen:** RectorSeal’s industry-leading reputation guarantees quality and reliability on every job.
- • **Permanent HVAC Revival:** Stops refrigerant leaks permanently, revitalizing your AC and refrigeration systems.
- • **Safe & Sustainable Formula:** Polymer-free, non-flammable, and non-toxic—engineered for professional environments.
- • **Nano-Powered Leak Detection:** Advanced nano particles seek and seal micro leaks for unmatched precision.
- • **Effortless Pro-Grade Application:** Standard 1/4" adapter ensures quick, mess-free use—OEM approved for peace of mind.

## Overview

RectorSeal AC Leak Freeze 45309 is a professional-grade, .5 oz leak sealant cartridge featuring innovative nano-particle technology that permanently seals refrigerant leaks in HVAC and refrigeration systems. With a standard 1/4" adapter for easy application, this polymer-free, non-flammable, and OEM-approved formula revitalizes AC units by targeting hard-to-find micro leaks, making it the go-to solution for tradesmen seeking reliable, safe, and efficient leak repair.

## Description

AC Leak Freeze is the ideal product for A/C unit repair and refrigeration repair. AC Leak Freeze will stop leaks of refrigerant gas in HVACR air conditioning and refrigeration systems in homes and commercial buildings. Standard 1/4" AC leak freeze adapter; ready to use and safe for HVAC systems; OEM approved and professional install is recommended. OEM approved and easy to apply. AC leak freeze will stop leaks of refrigerant gas in HVACR air conditioning and refrigeration systems in homes and commercial buildings. AC leak freeze revitalizes AC and refrigeration systems by permanently sealing small, hard-to-find micro leaks. .5 oz leak freeze cartridge. Polymer free, non-flammable and non-toxic; OEM approved and safe for HVAC systems. FOR THE TRADESMAN: RectorSeal is recognized as a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning (HVAC/R), plumbing, electrical, and construction markets.

## Features

- APPLICATION: AC leak freeze PRO refrigerant leak sealant with new leak seeking nano particles creates a stronger dual sealant; nano particles are non-polymer and non-reactive technology that fills cracks and imperfections in hvac coils
- EASY APPLICATION: Standard 1/4" AC leak freeze adapter; ready to use and safe for HVAC systems; OEM approved and professional install is recommended
- STOP LEAKS PERMANENTLY: AC leak freeze will stop leaks of refrigerant gas in HVACR air conditioning and refrigeration systems in homes and commercial buildings; AC leak freeze revitalizes AC and refrigeration systems by permanently sealing small, hard-to-find micro leaks
- SPECIFICATIONS: .5 oz leak freeze cartridge; polymer free, non-flammable and non-toxic; OEM approved and safe for HVAC systems
- FOR THE TRADESMAN: RectorSeal is recognized as a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning (HVAC/R), plumbing, electrical, and construction markets

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Polymer |
| Brand | Rectorseal |
| Style | Safety |
| Item Weight | 5 Ounces |
| Item dimensions L x W x H | 1.5 x 1.5 x 6.5 inches |
| Item Form | Liquid |
| UPC | 021449453097 |
| Unit Count | 1.0 Count |
| Global Trade Identification Number | 00021449453097 |
| Number of Items | 1 |
| Color | Blue |
| Surface Recommendation | Copper |
| Manufacturer | Rectorseal |
| Part Number | 45309 |
| Item Weight | 5 ounces |
| Product Dimensions | 1.5 x 1.5 x 6.5 inches |
| Item model number | 45309 |
| Size | 5 oz |
| Item Package Quantity | 1 |
| Included Components | AC Leak Freeze PRO Nano Mini-Split |
| Batteries Required? | No |

## Product Details

- **Material:** Polymer
- **Brand:** Rectorseal
- **Style:** Safety
- **Item Weight:** 5 Ounces
- **Item dimensions L x W x H:** 1.5 x 1.5 x 6.5 inches

## Images

![AC Leak Freeze 45309 Leak Sealant, Easy Application, HVAC, .5 oz. - Image 1](https://m.media-amazon.com/images/I/91GFfIg6ISL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Use the true suction port
*by B***S on May 3, 2025*

WOW just WOW what a great product our coil had a leak called the AC ppl out they confirmed the leak and did add 5 pounds but told me the coil had to be replaced it's a 5 ton Goodman only 3 years old so still under warranty except labor and coolant he proceeds to quote me 1500 dollars and I said there is the door goodbye so I was desperate it's hot in Texas so my ADHD brain went hyper focused on how to fix it myself and found this product it's awesome I was able to get most of it in because unfortunately I didn't know a caulking gun isn't an option so I tried pushing it in by hand but it wasn't moving so I unscrewed it quite a few times then finally went got one of my caulking guns but it has a plastic body so it flexed too much then grabbed one of the all metal ones and like butter it went in so even with only 3/4 of it actually making it in our ac is colder than the day it was put in

### ⭐⭐⭐⭐⭐ 3 plus months and holding!
*by D***  on March 11, 2025*

3 months and holding good.

### ⭐⭐⭐⭐ So far so good
*by M***H on October 27, 2021*

I only gave it a 4 star because it hasn't had time to run a full year to notice any changes. But so far it's working. We used it in late March and had our AC guy come to add freon, (about a pound was needed). But so far we haven't needed to add any since he came in March and it's now Oct 27. It seems to have worked for the whole summer here in the south, where the temps are 90-105 and the humidity is high.The year before we needed to add freon twice, once in late summer and again in the late spring.I really hope it keeps working for us!! This would save us about $1300 for a new coil, because of a leak.

## Frequently Bought Together

- Rectorseal 45309 AC Freeze PRO Nano Mini-Split Leak Sealer, 5 oz, Blue
- Rectorseal 45317 Leak Sealer, 1.5 oz, Green

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---

*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-01*