NSF Product and Service Listings

These NSF Official Listings are current as of Thursday, January 29, 2026 at 12:15 a.m. Eastern Time. Please contact NSF to confirm the status of any Listing, report errors, or make suggestions.

Alert: NSF is concerned about fraudulent downloading and manipulation of website text. Always confirm this information by clicking on the below link for the most accurate information: http://info.nsf.org/Certified/Lead_Content/Listings.asp?Standard=372%2DADPL&Company=0N560&


NSF/ANSI/CAN 372
Drinking Water System Components - Lead Content



 
Watts Aqualock 
815 Chestnut Street
North Andover, MA 01845 
United States 
888-500-0056 
978-689-6165

Facility : Chesnee, SC


Fittings[LL]
   LF1201-0815 15mm x 1/2"
   LF1211-0615 15mm x 3/8"
   LF1212-0615 15mm x 3/8"
   LF1229-0815 15mm x 1/2"
   LF1235-0815
   LF1237-15
   LF1701-1222 22mm x 3/4"

[LL] Product conforms with lead content requirements for “lead free” plumbing as defined by
     California, Vermont, Maryland, and Louisiana state laws and the U.S. Safe Drinking Water
     Act.

Facility : Fujian, China


Aqualock 35 Series[1] [LL]
   3510-0813 Female Connector 3/8" CTS x 3/4" Closet[2]
   3510-0814 Female Connector 3/8" CTS x 3/4" Garden Hose[2]
   3533RB-1808 Reducing Branch Stackable Tee 1" CTS x 3/8" CTS[2]
   3538-10 Selector Valve 1/2" CTS
   3540-10 Union Check Valve 1/2" CTS[2]
   3541-10 Bypass Valve 1/2" CTS
   3546-18 End Plug 1" CTS[2]
   3550-0404 Valved Tee 15 mm x 3/8" CTS
   3550-1508 Valved Tee 1/2" NPS x 1/2" NPT
   3551-0808 Valved Tee 1/2" NPS x 1/2" NPT x 3/8" CTS
   3552-0806 Straight Valve 1/2" NPS x 1/4" CTS
   3552-0808 Straight Valve 1/2" NPS x 3/8" CTS
   3553-0608 Angle Valve 1/2" NPS x 1/4" CTS
   3553-0808 Angle Valve 1/2" NPS x 3/8" CTS
   3555-1006 Straight Valve 1/2" CTS x 1/4" CTS
   3555-1008 Angle Valve 1/2" CTS x 3/8" CTS
   3556-1006 Angle Valve 1/2" CTS x 1/4" CTS
   3556-1008 Angle Valve 1/2" CTS x 3/8" CTS
   3558-1014 Hose Bib 1/2" CTS x 3/4" MGHT[2]
   3560-08 Tube Support 3/8" CTS[2]
   3560-10 Tube Support Liner 1/2" CTS[2]
   3560-14 Tube Support Liner 3/4" CTS[2]
   3560-18 Tube Support Liner 1" CTS[2]
   Watts P-654 Angle Valve 1/2" CTS x 1/4" CTS
   Watts P-671 Straight Valve 1/2" CTS x 1/4" CTS
   Watts P-672 Straight Valve 1/2" NPS x 1/4" CTS
   Watts P-673 Straight Valve 1/2" NPS x 3/8" CTS
   Watts P-675 Angle Valve 1/2" NPS x 1/4" CTS
   Watts P-676 Angle Valve 1/2" CTS x 1/4" CTS
   Watts P-677 Angle Valve 1/2" NPS x 3/8" CTS
   Watts P-678 Angle Valve 1/2" CTS x 3/8" CTS
   Watts P-681 Male Angle Valve 1/2" NPT x 3/4" GH
   Watts P-682 Female Angle Valve 1/2" NPT x 3/4" GH
   Watts P-683 Hose Bib 1/2" CTS x 3/4" MGHT[2]

[1] These products may be also be represented by the trade name Seatech.
[2] Products may have an additional "-5" added to the part number.  This addition indicates
    the presence of an optional collet cover.  Products may be marked with "LF" to indicate
    Lead Free.
[LL] Product conforms with lead content requirements for “lead free” plumbing as defined by
     California, Vermont, Maryland, and Louisiana state laws and the U.S. Safe Drinking Water
     Act.

Aqualock Metric Series[1] [3] [LL]
   1114-1815 Reducing Stem 15 mm x 1" CTS
   1114-1822 Reducing Stem 22 mm x 1" CTS
   1119-1215 Male Elbow 15 mm x 3/4" NPT[2]
   1120-1315 Female Ballcock Elbow 15 mm x 3/4" Ballcock[2]
   1121-0815 Drop Ear Elbow 15 mm x 1/2" NPT
   1125-1215 Female Swivel Tee 15 mm Run x 3/4 NPS[2]
   1140-15 Union Check Valve 15 mm
   1145-18 End Stop 1" CTS[2]
   1146-18 End Plug 1" CTS[2]
   1180-0815 Female Swivel 15 mm x 1/2" NPS[2]
   1182-18 Divider Plug [2]
   1183-1815 Dual Union Body 15 mm x 1" CTS
   1184-1815 Dual Stem Body 15 mm x 1" CTS
   1185-18 Return End 1" CTS[2]
   1188-15 Manifold Valve Repair Kit 15 mm
   1189-1815 Single Union Body 15 mm x 1" CTS
   1190-1815 Single Stem Body, Right 15 mm x 1" CTS
   1191-1815 Single Stem Body, Left 15 mm x 1" CTS
   1367-0415 Run Tee Valve 15 mm x 1/4" O.D. Run x 15 mm
   1614-1522 Reducing Stem 15 mm x 22 mm
   1615-2222 Union Connector 22 mm[2]
   1617-2222 Union Elbow 22 mm
   1623-2222 Union Tee 22 mm[2]
   1624-221515 Reducing Tee 22 mm x 15 mm x 15 mm Tee
   1624-222215 Reducing Tee 22 mm x 15 mm
   1645-22 End Stop 22 mm[2]
   2130-0615 Male Stem 15 mm x 3/8" BSP Stem[2]
   2439-1515 Shut Off Valve 15 mm
   2440-1515 Stem Valve 15 mm x 15 mm
   2443-0415 Reducing Valve 15 mm x 1/4" O.D.
   2444-0415 Tee Valve 15 mm x 1/4" O.D.
   2475-15 Pump Union w/ O-ring 15 mm[2]
   2476-15 Elbow Pump Connector 15 mm[2]
   2601-1215 Male Connector 15 mm x 3/4" NPT[2]
   2604-1215 Male Garden Hose 15 mm x 3/4" MGHT[2]
   2609-1215 Female Garden Hose 15 mm x 3/4" FGHT[2]
   2902-1222 Male Connector 22 mm x 3/4" NPT
   2913-1222 Hose Barb 22 mm x 3/4" HB
   2939-2222 Straight Valve 22 mm
   3554-1408 Female Angle Valve
   3557-1408 Male Angle Valve
   W2440-1515 Stem Valve, White 15 mm QC x Stem

[1] These products may be also be represented by the trade name Seatech.
[2] Products may have an additional "-5" added to the part number.  This addition indicates
    the presence of an optional collet cover.  Products may be marked with "LF" to indicate
    Lead Free.
[3] Products may bear a 01 prefix indicating single package.
[LL] Product conforms with lead content requirements for “lead free” plumbing as defined by
     California, Vermont, Maryland, and Louisiana state laws and the U.S. Safe Drinking Water
     Act.

Number of matching Manufacturers is 1
Number of matching Products is 83
Processing time was 0 seconds