Anderson O55 1-7/8-in Open Winter Plug for 2-in Pipe

Prepare standard 2-inch pool plumbing for pressure testing, line clearing, or winterization with the Anderson O55 open winter plug. Its reusable, straight-sided rubber expansion design features an open stem that permits air or water pressure to flow through the plug.

🚩 PRO TIP: Confirm your plumbing is standard 2-inch pool pipe and that the nominal 1-7/8-inch plug diameter is an appropriate fit before installation.

PRODUCT FEATURES & SPECIFICATIONS

• Brand: Genuine Anderson Manufacturing
• Manufacturer Part Number (MPN): O55
• BayState Product Number: ANDO55
• Type: Standard open winterizing/test plug
• Size: Nominal 1-7/8-inch (1.87 inches) diameter
• Compatibility: Fits standard 2-inch pool return, skimmer, and main-drain plumbing
• Connections: Combination 1/8-inch pipe/NPT thread and 3/8-inch hose barb

FREQUENTLY ASKED QUESTIONS

What size pipe does the Anderson O55 fit?
The O55 is sized for standard 2-inch pool plumbing and features a nominal 1-7/8-inch plug diameter.

What is the open stem used for?
The open stem permits air or water pressure to flow through the plug, making it ideal for pressure testing, clearing blocked lines, and winterization.

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