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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Description

💡 Upgrade your plumbing game with Oatey Sure-Vent — where innovation meets flawless flow!

ROBUST CAPACITY - Handles up to 160 DFU branch or 24 DFU stack venting, ensuring reliable performance for complex drainage systems.
CODE COMPLIANT PEACE OF MIND - Meets ASSE 1050/1051, IPC, and UPC standards — trusted by pros and approved for all your plumbing projects.
PRECISION TESTED RELIABILITY - 100% functionally tested at multiple pressure points guaranteeing zero leaks and consistent operation.
STREAMLINED VENTING SOLUTION - Eliminate bulky secondary vents with a sleek, space-saving design perfect for modern remodels and island sinks.
UNIVERSAL FIT EASY INSTALL - One size fits 1.5 to 2-inch vent pipes with a secure PVC Sch. 40 adapter and protective sleeve for debris-free setup.

The Oatey 39017 Sure-Vent Air Admittance Valve is a professional-grade PVC valve designed to replace secondary vents in drainage systems. It supports vent pipes from 1.5 to 2 inches, vents up to 160 DFU branch or 24 DFU stack, and is rigorously tested for reliable, leak-free performance. Compliant with ASSE 1050/1051, IPC, and UPC codes, it offers a compact, easy-to-install solution ideal for modern plumbing needs including island sinks and remodels.

Specifications

Material	Pvc
Brand	Oatey
Item dimensions L x W x H	15 x 8.1 x 5.8 Centimeters
Exterior Finish	exterior_finish
Inlet Connection Size	1.5 Inches
Inlet Connection Type	Solvent
Outlet Connection Type	NPS
Maximum Operating Pressure	3E+1 Inches of Mercury
Number of Ports	2
Outlet Connection Size	1.5 Inches
Specification Met	ASSE 1050, ASSE 1051, IPC, UPC
Global Trade Identification Number	00038753390178
Manufacturer	Oatey
UPC	732454231210 038753390178 782247277147
Country of Origin	USA
Item model number	39017
Product Dimensions	14.99 x 8.13 x 5.84 cm; 45.36 g
ASIN	B0069KCZO4

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