The Studor Maxi-Vent air admittance valve with push-fit rubber connector offers a simple drain and waste venting solution. Designed for use as an individual, branch, circuit, or stack vent, the Maxi-Vent can fit both 3 and 4 IN pipes. This 1-way valve automatically opens and takes in fresh air when negative pressure (suction) occurs from a fixture discharging into the plumbing system. When the water flow stops, the Maxi-Vent closes naturally due to gravity, preventing the circulation of any bad bathroom or drain odors.

• Can be used as an individual, branch, circuit or stack vent
• Will vent up to 500 DFUs on a stack
• Fits 3 IN with no-hub type coupling
• Fits 4 IN with rubber gasket provided
• Reduces the number of fire-stopping applications
• Exclusive vermin protection system
• Limited lifetime warranty for replacement of defective valves
• Expands architectural design limits
• California Residents: Warning - www.P65warnings.ca.gov
• ANSI/ASSE 1051, ANSI/ASSE 1050, NSF 14, ETL, ICC-ES PMG-1025, C-IAPMO

• Brochure https://macombstage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/Studor_20342_Brochure.pdf
• Instruction/Installation Manual https://macombstage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/Studor_20342_Instruction_Installation_Manual.pdf
• Instruction/Installation Manual_1 https://macombstage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/Studor_20342_Instruction_Installation_Manual_1.pdf
• Specification Sheet https://macombstage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/Studor_20342_Specification_Sheet.pdf