
For Residential and Commercial Applications
ES-WP-PAAdapters
Job Name 
Job Location 
Engineer 
Approval 
LEAD FREE
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*
Poly-Alloy CrimpRing™ 
Adapters
Poly-Alloy CrimpRing™ Sweat Adapters are used to transition   
copper pipe to WaterPEX 
used for the appropriate NPT fitting.
Specifications
System shall be plumbed using Watts WaterPEX® cross-linked 
polyethylene pipe. All joints shall be made using Watts brass 
CrimpRing 
the Watts copper CrimpRing 
crimping methods as outlined in the Watts WaterPEX 
Installation Guidelines.
™
 and/or poly-alloy CrimpRing™ fittings using either 
®
 supply lines. Threaded Adapters are 
™
 or stainless steel CinchClamp™** 
®
Contractor 
Approval 
Contractor’s P.O. No. 
Representative 
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Crimp x MPT Threaded
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WP12P
Adapter
Installation Note
CrimpRing™ Adapters must be installed in accordance with all 
Watts WaterPEX 
provided in WaterPEX
®
 installation procedures, including information 
®
 installation manual and guidelines.
Approvals
• Manufactured in accordance with American Society for 
Testing and Materials (ASTM) F-877 and F-2159
• Listed by the National Sanitation Foundation to NSF 
Standards 14 and 61 for use in potable water systems
• Listed by NSF to be in compliant to the Uniform Plumbing 
Code
• Labeled B137.5 which indicates that it is compliant to the 
CSA Standards B137.5
• Manufactured from Acudel
* The wetted surface of this product contacted by consumable 
water contains less than one quarter of one percent (0.25%) of 
lead by weight.
** Note: Watts WaterPEX CinchClamp™ fittings should not be used 
with wrot copper PEX fittings.
®
 engineered thermoplastic resin.
War n i n g!
 If connections must be made in temperatures below 30°F, 
caution must be taken to allow the WaterPEX to form a proper 
seal against the barb. Apply the connection slowly to ensure 
the PEX material conforms to the barb.
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements, 
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.

Dimensions – Weights
 MODEL  INLET  OUTLET  PKG. WEIGHT
   in.  mm  type  in.  mm  type  lbs.  kgs.
 CrimpRing™ Threaded Adapters — Crimp x Male 
 WP12B-0808PB 
 WP12B-0812PB 
 WP12B-1212PB 
1
⁄2  15  Crimp Fitting 
1
⁄2  15  Crimp Fitting 
3
⁄4  20  Crimp Fitting 
1
⁄2  15  MPT  1  0.5
3
⁄4  20  MPT  2  0.9
3
⁄4  20  MPT  2  0.9
A Watts Water Te chn olo gie s Compan y
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.ca
USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.watts.com
ES-WP-PAAdapters  1020  © 2010 Watts