The unique design of the STUDOR® MAXI-VENT® provides plumbing ventilation to prevent the loss of water seals in traps without the need for costly roof penetration and vent piping.

STUDOR® MAXI-VENT® Air Admittance Valve, 3/4 in, ABS, 3 in ID x 4-7/8 in OD x 5-1/4 in L, Domestic

• Can be used as an individual, branch, circuit or stack vent
• Will vent up to 500 DFUs on a stack
• Fits 3 and 4 in pipe size
• Expands architectural design limits
• Reduces the number of fire stopping applications
• Exclusive vermin protection system
• Limited lifetime warranty for replacement of defective valves
• 4 in Push-Fit rubber connector

• Catalog https://www.hirsch.com//ASSETS/DOCUMENTS/ITEMS/EN/https://assets.unilogcorp.com/2/ITEM/DOC/IPS_10064_Catalog.pdf
• Specification Sheet https://www.hirsch.com//ASSETS/DOCUMENTS/ITEMS/EN/https://assets.unilogcorp.com/2/ITEM/DOC/IPS_20342_Specification_Sheet.pdf