Waterway Plastics 805-0117sd-b O-ring Air Relief Plug

Product Description

The WATERWAY PLASTICS 805-0117sd-b is an O-ring air relief plug designed for use in pool filtration systems. This small but critical component allows trapped air to be purged from the filter tank, maintaining proper water flow and system pressure. The air relief plug seats against a filter housing port and is sealed with an O-ring to prevent leaks during operation. It is a direct OEM-style replacement part installed by pool service technicians and equipment repair professionals during routine filter maintenance or component replacement.

This air relief plug is commonly found on pool sand filters and cartridge filter housings where manual air bleeding is required. It is typically located at the top of the filter tank or on the filter head assembly. Pool service professionals replace this part when the existing plug cracks, strips, or develops a leak around the O-ring seat, causing pressure loss or water seepage at the filter.

Key Features

• O-ring seal design prevents leaks at the filter housing air relief port
• Allows manual bleeding of trapped air from the filter tank
• OEM-style replacement for Waterway Plastics filter assemblies
• Compact plug format for straightforward removal and reinstallation

Compatibility

Designed as an OEM-style replacement air relief plug for Waterway Plastics pool filter assemblies. Verify fitment against the existing part number on the filter housing before installation.

Installation Notes

Installation is typically performed by a pool service technician. Before replacing the air relief plug, shut off the pump and relieve all pressure from the filter tank by rotating the existing plug or using the multiport valve relief position. Hand-tighten the new plug and confirm the O-ring is properly seated to avoid leaks. Do not over-torque, as filter housing threads and plug bodies may be plastic.

Technical Specifications

• Component Type: O-Ring Air Relief Plug
• Application: Pool Filtration System

Standard Information

• Brand: WATERWAY PLASTICS
• Manufacturer Part Number: 805-0117sd-b