DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Oatey 33403 Plastic Plug (with Galvanized screw and wing nut), 4-Inch

Oatey 33403 Plastic Plug (with Galvanized screw and wing nut), 4-Inch

Q: What size is the bolt and how long is it? Thanks.

I measured the bolt at 3/8" threaded diameter with 2 1/4" of threaded length. Since this is not specified in the description and other bolt lengths would work the same, it may be you'd end up with a different bolt length.

Q: Would this stand up to the abuse of an ATV, as a dry storage tube cap?

I would think so. It’s pretty sturdy

Q: Will this seal the 31/4" cleanout hole in 4" cast iron sewer line?

This plug properly fits a 4" hole. Mine is in use so I cannot measure it. However, I also purchased the 3" plug and I believe it would be more appropriate. At max, it achieves about 3 1/8 seal. If you wrap enough material around the 3" you might get a more usable product.

Q: End of RV slinky storage tube is 4.5 " diameter. When rubber is compressed will this be tight enough to survive vibration of normal travel?

It's meant to hold fast in a firm pipe, like PVC. I wouldn't recommend it for a hose or pipe with give. The rubber gasket only moves out a little bit when tightened. Maybe you could get a large hose clamp and tighten it down outside your hose after you cover the end with aluminum foil.

Product ID: 345711940

Secure Transaction

Details

Material
Plastic
Brand
Oatey
Colour
Galvanized
Product Dimensions
9.5W x 9.5H
Item Weight
0.5 Pounds

🔩Galvanized screw for durability

🧰Fits 4-inch pipes perfectly

🛡️Holds up to 5 PSIG pressure

Frequently Bought Together

Oatey 33403 4-in. End of Pipe Gripper Mechanical Plug with Galvanized Screw and Wing Nut, 4 Inch, Red

Oatey 33402 Mechanical Test Plug, 3 in, 5 Psi Back, Plastic, 110 Deg F, 3 Inch, Red

Oatey 33400 Mechanical End-of-Pipe Gripper Plug, 1-1/2 in., Red, 1 Count

Description

🔧 Seal the deal with confidence — don’t let your pipes miss out!

PRESSURE READY PLUG - Engineered to withstand up to 5 PSIG air pressure, ensuring reliable sealing under demanding conditions.
COMPACT LIGHTWEIGHT - At just 0.5 pounds and 9.5 cm dimensions, it’s easy to handle and install without hassle.
DUST DEBRIS DEFENSE - Effectively blocks dirt and debris from open pipe ends, maintaining system integrity and cleanliness.
UNIVERSAL COMPATIBILITY - Designed to fit most piping materials, making it your go-to solution for versatile plumbing needs.
DURABLE GALVANIZED HARDWARE - Equipped with a galvanized screw and wing nut for enhanced corrosion resistance and long-lasting performance.

The Oatey 33403 Plastic Plug is a premium 4-inch mechanical plug featuring a durable plastic body with galvanized screw and wing nut. Designed to hold higher pressures up to 5 PSIG, it effectively seals open pipe ends against dirt and debris. Lightweight and compatible with most piping materials, this USA-made plug is a reliable choice for professional-grade plumbing protection.

Specifications

Material	Plastic
Brand	Oatey
Colour	Galvanized
Product Dimensions	9.5W x 9.5H Centimeters
Item Weight	0.5 Pounds
UPC	038753334035
Global Trade Identification Number	00038753334035
Number of Items	1
Manufacturer	Oatey
Country of Origin	USA
Item model number	33403
ASIN	B000H5T1PI

Have a Question? See What Others Asked

What size is the bolt and how long is it? Thanks.

Would this stand up to the abuse of an ATV, as a dry storage tube cap?

Will this seal the 31/4" cleanout hole in 4" cast iron sewer line?

End of RV slinky storage tube is 4.5 " diameter. When rubber is compressed will this be tight enough to survive vibration of normal travel?

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App