Oatey 39223 Sure-Vent 3" to 4" AAV Schedule 40 PVC Adapter, (Pack of 6 pcs)

Oatey 39223 Sure-Vent® 500 DFU Air Admittance Valve (AAV) with PVC adapter aims at providing proper air flow into drainage system without a need for vent to be extended to open air. Due to the specific, thought-through construction, the given device stands sentinel on air quality in a room or a building, for it retains/inhibits sewer gases.

Benefits

• possesses a protective rubber sleeve for proper grip during installation & protection from debris;
• reliably opens/closes with smallest pressure fluctuations;
• applicable to remote bathroom groups and island sinks;
• cost-efficient way to provide high-quality air;
• compliant to Standards 1050 & 1051 (ASSE);
• guarded seal due to air inlets screening;
• reliably retains sewer gases;
• rated 500 DFU;
• functionally tested.

The 39223 one-way AAV employs the Sweet Spot™ technology, which allows air access to plumbing drainage with the appearance of negative pressure in a pipe system. In case of flow absence (0 diff. pressure) or under positive pressure, the given element gets closed and seals the vent terminal.