Earl's Performance AT993301ERL Ano Tuff 1/8 in. NPT Hex Head Pipe Plug Black Anodized Pair

The Earl's Performance AT993301ERL is a 1/8 in. NPT hex head pipe plug crafted from aluminum with Earl's proprietary Ano Tuff hard anodized finish. Unlike standard anodizing, the Ano Tuff process penetrates deep into the aluminum substrate for superior wear and corrosion resistance that lasts twice as long as a traditionally anodized fitting. The aggressive black anodized appearance makes these plugs a popular choice in both performance builds and custom fabrication work.

Key Features:

• 1/8 in. NPT male thread — standard pipe thread for broad compatibility
• Hex head, external wrenching — easy installation and removal with a standard wrench or socket
• Ano Tuff hard anodized black finish — penetrates the aluminum for long-lasting wear and corrosion resistance
• Lasts twice as long as conventional anodized fittings
• Sold as a pair (2 plugs)
• Made in the USA
• Emissions Code 5 — legal for use on emissions-controlled, non-emissions-controlled, and race-only vehicles

These NPT plugs are well-suited for blocking unused ports in oil pans, cylinder heads, intake manifolds, engine blocks, and custom plumbing systems. A reliable choice from Earl's Performance, a brand with a decades-long heritage in precision performance plumbing.