---
product_id: 4356000
title: "Little Giant CV-10 Check Valve for the following Little Giant Series Condensate Pumps - VCC, VCMA, VCL-14 and VCL-24, 1/4-inch MNPT x 3/8-inch Barbed, Black, 599065"
brand: "little giant"
price: "98 zł"
currency: PLN
in_stock: true
reviews_count: 8
category: "Little Giant"
url: https://www.desertcart.pl/products/4356000-little-giant-cv-10-check-valve-for-the-following-little
store_origin: PL
region: Poland
---

# Durable acetal, nitrile & Buna-N materials 1/4-inch MNPT x 3/8-inch barbed fitting Prevents backflow & pump rapid cycling Little Giant CV-10 Check Valve for the following Little Giant Series Condensate Pumps - VCC, VCMA, VCL-14 and VCL-24, 1/4-inch MNPT x 3/8-inch Barbed, Black, 599065

**Brand:** little giant
**Price:** 98 zł
**Availability:** ✅ In Stock

## Summary

> 🛠️ Upgrade your condensate pump’s defense with the CV-10 check valve — because every drop counts!

## Quick Answers

- **What is this?** Little Giant CV-10 Check Valve for the following Little Giant Series Condensate Pumps - VCC, VCMA, VCL-14 and VCL-24, 1/4-inch MNPT x 3/8-inch Barbed, Black, 599065 by little giant
- **How much does it cost?** 98 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/4356000-little-giant-cv-10-check-valve-for-the-following-little)

## Best For

- little giant enthusiasts

## Why This Product

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

## Key Features

- • **Backflow Blocker:** Stops condensate from draining back, protecting your pump from wear and tear.
- • **Robust Material Build:** Crafted from acetal body, nitrile O-ring, and Buna-N ball for long-lasting reliability.
- • **Extended Pump Lifespan:** Prevents rapid cycling, reducing motor strain and costly replacements.
- • **Compact & Efficient Design:** Small 1.72” x 0.72” size fits tight spaces without compromising performance.
- • **Precision Fit for Little Giant Pumps:** Seamlessly compatible with VCC, VCMA, VCL-14 & VCL-24 series for hassle-free installation.

## Overview

The Little Giant CV-10 Check Valve is a precision-engineered replacement part designed exclusively for select Little Giant condensate pumps. Featuring a 1/4-inch MNPT inlet and 3/8-inch barbed outlet, it prevents water backflow and rapid cycling, significantly extending pump life. Built with durable acetal, nitrile, and Buna-N components, this compact valve ensures reliable, maintenance-free operation in tight spaces.

## Description

Product Description Little Giant CV-10 Check Valve is a replacement check valve for the following Little Giant Series Condensate Pumps - VCC, VCMA, VCL-14 and VCL-24. The CV-10 has is 1/4-inch MNPT x 3/8-inch Barbed. The part number is 599065. Check valves prevent water from backing into the pump causing the pump to fast cycle (turn on/off quickly) which can shorten the lifespan of the motor. From the Manufacturer This Little Giant check valve is used for VCC, CCM, VCMA, VCL-14/24 units. It fits 1/4-Inch MNPT to 3/8-Inch ID vinyl tubing.

Review: Works perfectly! - Nice replacement part for the condensate pump. Great to be able to order the part, have it shipped to your door and at a great price. Works perfectly!
Review: Solved my problem and saved money - Our pump was not working and was shutting off our AC. I was going to buy a new one. I’m taking it all apart I wanted to see why it wouldn’t pump. Took this check valve out and it pumped like crazy. Tried to blow through valve and nothing. Took it apart and the ball had started to disintegrate. Still figured I had to buy a pump but found this. Inexpensive fix and back in business.

## Features

- DESIGNED FOR LITTLE GIANT CONDENSATE REMOVAL PUMPS: This check valve works only with Little Giant's VCL-14/24, VCMA and VCC Series condensate pumps to keep condensate from draining back to the system
- FITTINGS: Designed to work with pumps with a 1/4-inch FNPT pipe fitting and 3/8-inch vinyl tubing; the check valve is 1/4-inch MNPT on one end and .430-inch barbed on the other end
- USE: This check valve keeps the water from flowing back to the pump and prevents the pump from rapid cycling, extending the life of the pump
- MATERIAL: check valve body and seat is made of acetal, O-ring is made of nitrile, ball is made of Buna-N
- DIMENSIONS: the CV-10 check valve is 1.72 inches long by 0.72 inches in diameter

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Little Giant |
| Exterior Finish | painted |
| Inlet Connection Size | 0.25 Inches |
| Inlet Connection Type | National Pipe Tapered |
| Item dimensions L x W x H | 6 x 4.5 x 0.5 inches |
| Material | Acetal, Nitrile, Buna-N |

## Product Details

- **Material:** Vinyl
- **Brand:** Little Giant
- **Item dimensions L x W x H:** 6 x 4.5 x 0.5 inches
- **Exterior Finish:** painted
- **Inlet Connection Size:** 0.25 Inches
- **Inlet Connection Type:** National Pipe Tapered
- **Outlet Connection Type:** Barb
- **Maximum Operating Pressure:** 290 Bars
- **Number of Ports:** 2
- **Outlet Connection Size:** 0.38 Inches

## Images

![Little Giant CV-10 Check Valve for the following Little Giant Series Condensate Pumps - VCC, VCMA, VCL-14 and VCL-24, 1/4-inch MNPT x 3/8-inch Barbed, Black, 599065 - Image 1](https://m.media-amazon.com/images/I/51wVmavq39L.jpg)

## Questions & Answers

**Q: Does this check valve need a threaded water container or is there a tightening nut for both ends?**
A: It is intended to screw into a threaded hub on the tank. But I would expect that if you had a nut of the proper thread you could put it through an threaded hole in a tank (it comes with an O-ring that could serve as the gasket).By the way, this valve does not always shut off tightly. If you need to be absolutely sure no water runs back into the tank, this will disappoint you.Best regards,Doug

**Q: Is the plastic ball spring loaded?**
A: No, it is held in place by gravity.   The water flows upward, opening the valve, and when the water stops flowing, gravity pulls the ball back to the closed position.

**Q: Will this work on model vcma-15ul 554401?**
A: Yes, if you are buying it new, it should already have one of these installed. If you are replacing it, this will work just like the new one.

**Q: Will this degrade if used with propylene glycol coolant?**
A: Up to temperatures of 140 degrees F the ABS body is resistant, higher than that it is not. That is, it would not be useful for engine radiator hoses. See http://www.ipexna.com/media/1693/abs-chemical-resistance-guide.pdf for details.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works perfectly!
*by S***R on March 6, 2025*

Nice replacement part for the condensate pump. Great to be able to order the part, have it shipped to your door and at a great price. Works perfectly!

### ⭐⭐⭐⭐⭐ Solved my problem and saved money
*by E***E on July 25, 2024*

Our pump was not working and was shutting off our AC. I was going to buy a new one. I’m taking it all apart I wanted to see why it wouldn’t pump. Took this check valve out and it pumped like crazy. Tried to blow through valve and nothing. Took it apart and the ball had started to disintegrate. Still figured I had to buy a pump but found this. Inexpensive fix and back in business.

### ⭐⭐⭐⭐⭐ Replaced a broken valve
*by M***L on January 4, 2026*

Yes!! Our check valve broke off because of bad placement of pump and the drain tube was old and getting stiff. Thought I had to buy a whole new pump but this replaced the old one that broke with no issues. Our pump is a Wayne pump and they don’t make them anymore and are hard to find. This was an easy fix. Bought two just to have another one on hand.

## Frequently Bought Together

- Little Giant CV-10 Check Valve for the following Little Giant Series Condensate Pumps - VCC, VCMA, VCL-14 and VCL-24, 1/4-inch MNPT x 3/8-inch Barbed, Black, 599065
- Little Giant VCMA-15ULS 115 Volt, 65 GPH, 1/50 HP Automatic Condensate Removal Pump for HVAC/Refrigeration Systems/Dehumidifiers with Overflow Detection Switch and 6-Foot Cord, White/Black, 554405
- Eastman 3/8 Inch ID (1/2 Inch OD) PVC Clear Vinyl Tubing, 20 Foot Length, 98566

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-31*