304 Stainless Steel External Plug / Four Corner Plug / Stuffer — 3/8' Pipe Connector A durable, corrosionresistant external plug designed to close or protect 3/8' pipe ends. Made from 304 stainless steel, this fourcorner plug (stuffer) provides reliable service in plumbing and general piping applications where a robust, long‑lasting end cap is required. Key benefits Corrosion resistance: 304 stainless steel resists rust and staining for use in damp or wet environments. Durable protection: Protects pipe ends from debris, contamination, and mechanical damage during storage, transport, or installation. Simple fit for 3/8' pipe: Designed specifically to mate with 3/8' pipe for straightforward end plugging. Stable seating: Fourcorner plug/stuffer geometry helps maintain a secure, centered fit at the pipe opening. Key attributes Material: 304 stainless steel for strength and corrosion resistance. Type: External plug / four corner plug (stuffer). Size compatibility: Intended for 3/8' pipe. Function: End closure and protection; suitable as a connector/plug in plumbing accessory applications. How it solves common problems Prevents ingress of dirt and moisture into open pipe runs during assembly or storage. Provides a robust temporary or permanent closure for 3/8' pipe without adhesives or complicated fittings. Offers better durability than plastic caps in demanding or outdoor environments. Typical applications Plumbing maintenance and : Temporarily close off water lines or service branches during system work. Construction and transport: Protect exposed 3/8' pipe ends from damage and contamination onsite or in transit. Marine and outdoor installations: Use where stainless steel corrosion resistance is required for longterm exposure. Installation notes Designed for external installation on 3/8' pipe ends. Verify fit with your specific pipe wall thickness and end condition. Clean mating surfaces before installation for seating and to avoid trapping debris. Use appropriate tools or procedures consistent with 304 stainless steel hardware if additional securing is required. What to expect Reliable, longlasting performance in general plumbing and accessory roles where a 3/8' external pipe plug is needed. Material and construction that support repeated handling and exposure without rapid degradation. Compatible with common plumbing environments and suitable wherever a 304 stainless steel external plug for 3/8' pipe is required.