Studor 20302


Air Admittance Valve, Pipe Dia 3 To 4 In

20302 372309
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ItemAir Admittance Valve
TypeMaxi Vent(R)
Material of ConstructionABS Plastic
Pipe Dia. (In.)3-4
Length (In.)5-1/4
For Use With Venting Single Fixture, Individual Branch, Circuit Vent Or Stack Type Application Up To 500 DFU
Standards ASSE Performance Standard 10510 And 1051, NES-592, NSF Standard 14, IAPMO, File No C-3803, ITS Intertek Testing Services
Package Quantity 1
Weight 0.800000


Air Admittance Valve, ABS Plastic, White Color/Finish, Pipe Dia. 3-4 In., For Use With PVC or ABS, Slip Connection

Air Admittance Valves
  • Allow air to enter DWV systems to equalize pressure when water drains out of the system; eliminate the need for costly roof penetrations and vent piping. 1ATD5 vents up to 500 DFUs on a stack; 1ATD6 vents up to 160 DFUs on a branch and up to 24 DFUs on a stack. 15W940 has a replaceable cabon filter to reduce plumbing drainage system odors.
  • 1ATD5 and 1ATD6 meet ASSE 1050/1051 and NSF 14.
  • Use as individual, branch, circuit, or stack vents

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