1/2 NPT Brass Pipe Cap with 4 Gaskets – Gosknor Hexagonal Compression

Description

Product Overview

The Gosknor 1/2 NPT Brass Pipe Cap Set is engineered for professionals and DIY enthusiasts who demand a reliable, leak‑proof connection in water distribution systems. Each package contains four precision‑machined brass caps and four matching rubber gaskets, providing a complete solution for sealing pipe ends. The caps feature a hexagonal head that fits standard wrenches, enabling fast, torque‑controlled installation without the need for specialized tools. Constructed from high‑grade brass with a polished exterior finish, the caps resist corrosion, maintain structural integrity under high pressure, and deliver a long service life. Internal NPT threads ensure a tight, uniform fit with 0.75‑inch (19 mm) pipe diameters, while the included silicone‑based gaskets create a double‑seal barrier that prevents seepage even in demanding irrigation or sprinkler applications. Dimensions of each cap measure 0.98 × 0.98 × 0.04 inches, and the total weight of the set is only 4.2 oz, making it easy to handle and store.

Usage

These brass caps are versatile enough to be used across a wide range of water‑line projects. Whether you are finishing a residential faucet installation, repairing a garden irrigation line, or completing an underground sprinkler system, the caps provide a secure termination point that prevents backflow and protects downstream components. The hexagonal head design allows users to tighten the cap with a standard adjustable wrench, reducing installation time and minimizing the risk of over‑torquing. The rubber gaskets conform to minor surface imperfections, ensuring a tight seal even on slightly uneven pipe ends. Because the caps are made from brass, they are compatible with both copper and brass pipe sections, making them an ideal choice for retrofits and new construction alike. Their compact size (approximately 2.5 × 2.5 cm) enables installation in tight spaces, such as under sinks, within wall cavities, or in outdoor valve boxes.

Why Choose Us

Gosknor stands behind every product with a commitment to quality and customer satisfaction. Our brass caps undergo rigorous dimensional testing to guarantee thread compatibility and consistent fit across all units. The combination of a hardened brass body and a flexible silicone gasket delivers a dual‑seal system that outperforms standard single‑gasket solutions, reducing the likelihood of leaks and the need for frequent maintenance. Each cap is finished with a smooth, gold‑tone exterior that resists tarnish and maintains an attractive appearance even after prolonged exposure to water and outdoor elements. We provide clear, step‑by‑step installation instructions with every purchase, and our responsive support team is available to answer technical questions, ensuring that you can complete your project with confidence. Additionally, the set’s competitive price point offers excellent value without compromising on durability or performance.

Key Features

• High‑quality brass construction resists corrosion and maintains strength under pressure.
• Hexagonal head design enables quick, tool‑free tightening for fast installation.
• Included silicone gaskets provide a double‑seal barrier to prevent leaks.
• Compact size fits into tight spaces, ideal for residential and commercial plumbing.
• Backed by Gosknor customer support and a satisfaction guarantee for peace of mind.

FAQ

What pipe sizes are compatible with these caps?

The caps are designed for 1/2 inch (0.75 in) NPT threads, which correspond to a 19 mm outer diameter. They work with standard copper and brass pipe sections that use the same NPT specification.

Can the caps be used outdoors?

Yes. The brass body and silicone gasket are both rated for outdoor use and can withstand temperature fluctuations, UV exposure, and occasional moisture without degrading.

Do I need any special tools to install the caps?

No special tools are required. The hexagonal head fits standard adjustable wrenches or socket sets, allowing you to tighten the cap securely with common household tools.

How many caps and gaskets are included in the package?

The set contains four brass caps and four matching rubber gaskets, providing a complete solution for up to four pipe terminations.

What is the warranty on this product?

Gosknor offers a one‑year limited warranty covering manufacturing defects. If you encounter any issues, contact our support team for a replacement or refund.