---
product_id: 3128128
title: "4023 Oil Tank Mushroom Vent Cap"
brand: "oil equipment mfg"
price: "C$3583"
currency: NIO
in_stock: true
reviews_count: 8
url: https://www.desertcart.ni/products/3128128-4023-oil-tank-mushroom-vent-cap
store_origin: NI
region: Nicaragua
---

# 30 mesh screen 1-1/4" NPT size Rust-resistant design 4023 Oil Tank Mushroom Vent Cap

**Brand:** oil equipment mfg
**Price:** C$3583
**Availability:** ✅ In Stock

## Summary

> 🛡️ Secure Your Tank, Elevate Your Peace of Mind!

## Quick Answers

- **What is this?** 4023 Oil Tank Mushroom Vent Cap by oil equipment mfg
- **How much does it cost?** C$3583 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/3128128-4023-oil-tank-mushroom-vent-cap)

## Best For

- oil equipment mfg enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Rust-resistant zinc-plated cast-iron ensures durability in any environment.
- • **Universal Fit:** Designed for the majority of installations across the U.S., Alaska, and Canada.
- • **Easy Installation:** 1-1/4" Female NPT makes setup a breeze.
- • **Dependable Quality:** Trust in a product that meets industry standards for performance.
- • **Ultimate Protection:** Keep your oil tank safe from debris with a 30 mesh screen.

## Overview

The 4023 Oil Tank Mushroom Vent Cap is a robust, rust-resistant zinc-plated cast-iron cap designed for 1-1/4" Female NPT installations. Featuring a 30 mesh screen, it effectively prevents debris from entering the vent pipe, making it a reliable choice for oil tank safety across North America.

## Description

4023 Oil Tank Mushroom Vent Cap

## Features

- 1-1/4 mshrm tnk vent cap
- This popular style is used in the majority of installations in the United States, Alaska, and Canad
- Rust-resistant zinc-plated cast-iron design
- Each cap is designed with a 30 mesh screen to prevent debris from entering the vent pipe
- 1-1/4" Female NPT

## Images

![4023 Oil Tank Mushroom Vent Cap - Image 1](https://m.media-amazon.com/images/I/71Oe2eTkRML.jpg)

## Questions & Answers

**Q: Does this cap make a whistle sound while tank is being filled ?**
A: No, this is just a cap with a screen to prevent water and debris from getting in the pipe. The whistle sound is generated by a "vent wistle or vent alarm" threaded into the tank at the other end of the vent pipe.

**Q: hello my oil cap have the numbers 214 35 SA. will this cap fit, if not which cap do I need?**
A: To be clear, this is a vent cap to vent a tank so the tank can breathe while you pump out of it. The connection is 1-1/4" NPT Female threads. The numbers you provided I do not recognize so I am not able to help you with whether you are thinking of a sealed cap to plug a fill opening or you meant a vent cap for the number comparison.

**Q: Picture shows 2" model 4025, Description = 1 1/4" model 4023, which is correct?**
A: The product is the model 4023, it is an 1-1/4" npt thread. the picture is wrong, from whomever set up these listings. They used the same picture for all.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect Whistle Cap Replacement
*by J***N on March 12, 2025*

Certainly! Here's a polished version of your review:This product was exactly what I needed. When my fuel oil delivery company required customers to switch from PVC piping to metal, I found myself unable to use the old whistle cap. Thankfully, this one did the job perfectly. Highly recommended!

### ⭐⭐⭐⭐⭐ Well Made
*by B***N on April 13, 2024*

Solid and well made

### ⭐⭐⭐⭐⭐ Solid product
*by C***T on March 11, 2024*

Will not rust. Solid venting. Perfect fit

## Frequently Bought Together

- Oil Equipment Mfg 4023 Oil Tank Mushroom Vent Cap
- Anvil 8700137006, Steel Pipe Fitting, Nipple, 1/4" NPT Male x 3-1/2" Length, Black Finish
- Scully 2" X 1 1/4" Vent Alarm by Scully

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**Shop now:** [https://www.desertcart.ni/products/3128128-4023-oil-tank-mushroom-vent-cap](https://www.desertcart.ni/products/3128128-4023-oil-tank-mushroom-vent-cap)

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-26*