So is this a 1 1/2in. male thread without using any adapters? and will it work on abs pipe?

The top part of the vent (you can see the 2" male threads). The bottom part of the vent is an adapter that allows solvent welding to 1.5" or 2" PVC (not ABS). So, for 1.5" ABS pipe with male threads, you need to use a 1.5 Female to 2.0 female adapter/coupler or, if no threads on the ABS, solvent weld on a 1.5" ABS to 2" female pipe thread adapter.

Can I cut the vents coming through the roof and cap them in the attic with this?

Per code, you need one 3" vent out the roof. The others can be air admittance valves as long as there is access to replace them and they can get air to work properly.

What is the difference between the 39016 and the 39017?

Just a different model number. They're both the same size for the same size pipe.

i have 2 fixtures to the same drain, kitchen sink and sump pump, where should this Valve be placed? Both go to septic, Sink won't drain with pump on

First off I would highly recommend to not put sump pump discharge through your house waste system. It should always be run to the outside. One reason is that your system is not designed for the volume and another is that you are pushing sediment through it. It should be run to the outside away from the foundation or into a drywall system with your gutters if so eqiupt. If you do it the right way you don't need this valve. Also, what happened to your original vent? Lots of questions here....you should only need this for an island sink or difficult remodel situations. That said you can install this on a t above your trap arm or weir or somewhere above that

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Oatey Sure-Vent 1-1/2 in.–2 in. 160 Branch, 24 Stack DFU Air Admittance Valve with White PVC Sch. 40 Adapter

Oatey Sure-Vent 1-1/2 in.–2 in. 160 Branch, 24 Stack DFU Air Admittance Valve with White PVC Sch. 40 Adapter

Product ID: 12443771

Details

Brand
Oatey
Exterior Finish
Inlet Connection Size
1.5 inches
Inlet Connection Type
PVC Sch. 40
Item dimensions L x W x H
2.5 x 2 x 4.25
Material
Polyvinyl

📏Fits 1.5"–2" PVC Sch. 40 vent pipes

⚙️Vents up to 160 DFU branch / 24 DFU stack

🛡️Tested at 1/4 in. & 30 in. H2O pressure

S$47

Duties & taxes included

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Description

🚀 Upgrade your vent game with Oatey Sure-Vent — where pro-grade reliability meets effortless installation!

SEWER GAS BLOCKER - Advanced one-way valve design prevents sewer gases from escaping, keeping your space fresh and safe.
UNIVERSAL FIT 📏 - One size fits 1-1/2" to 2" PVC Sch. 40 pipes, simplifying installation and reducing inventory hassle.
CODE APPROVED CONFIDENCE - Meets ASSE 1050/1051, IPC, and UPC standards—trusted by pros for over a century.
MAX VENTING POWER ⚙️ - Handles up to 160 DFU branch or 24 DFU stack vents, ensuring optimal airflow for complex plumbing setups.
PRESSURE TESTED RELIABILITY 🛡️ - 100% functionally tested at critical pressure points for guaranteed leak-free, trouble-free performance.

The Oatey Sure-Vent Air Admittance Valve is a professional-grade plumbing solution designed to vent up to 160 DFU branch or 24 DFU stack systems without the need for traditional stack vents. Compatible with 1.5" to 2" PVC Sch. 40 pipes, it features a one-way valve that equalizes pressure and blocks sewer gases. Tested rigorously at multiple pressure levels and compliant with ASSE, IPC, and UPC codes, this valve offers reliable, code-approved performance ideal for island sinks, remote bathrooms, and remodel projects.

Specifications

ASIN	B0069KCZO4
Best Sellers Rank	#9,561 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #154 in Pipe Fittings
Brand Name	Oatey
Connector Type	Adapter
Customer Reviews	4.6 4.6 out of 5 stars (2,280)
Exterior Finish	exterior_finish
Global Trade Identification Number	00038753390178
Included Components	(1) Air admittance valve
Inlet Connection Size	1.5 inches
Inlet Connection Type	PVC Sch. 40 adapter
Item Dimensions	2.5 x 2 x 4.25 inches
Item Type Name	Air Admittance Valve
Item Weight	1.6 ounces
Manufacturer	Oatey
Manufacturer Part Number	39017
Manufacturer Warranty Description	Limited Warranty
Material Type	Polyvinyl Chloride (PVC)
Maximum Pressure	30 inches_mercury
Model Number	39017
Number of Pieces	2
Number of Ports	2
Outlet Connection Size	1.5 inches
Outlet Connection Type	NPS
Set Name	24 Stack
Size	1-1/2-Inch by 2-Inch
Specification Met	ASSE 1050, ASSE 1051, IPC, UPC
Thread Size	1.5 inches
Thread Type	PVC threaded
UPC	732454231210 038753390178 782247277147
Unit Count	1 Count
Valve Type	air admittance valve

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