AquaLock 81902924 3515R-1004CP 1/2" CTS x 1/4" OD Plastic Reducing Coupling Contractor Pack

The AquaLock 3515R-1004CP is a 1/2" CTS x 1/4" OD push-to-connect plastic reducing coupling sold in a contractor pack (ordering code 81902924). Constructed from lead-free polysulfone thermoplastic, this reducing union coupling delivers fast, reliable connections without the need for any tools, tube inserts, or solvents — making it ideal for high-volume plumbing and water treatment installations.

Key Features:

• Push-to-connect design — no tools or tube inserts required for installation
• Compatible with copper, CPVC, PEX, and CTS-rated pipe
• Unique O-ring guide technology provides a secure, zero-leak connection
• Joins tubing on the outside rather than inside, maximizing flow capacity vs. barb fittings
• Tubing swivels after connection, even under maximum pressure — ideal for vibrating and dynamic applications
• Suitable for both hot and cold water applications
• Lead-free polysulfone construction for drinking water safety
• Backed by a 25-year limited warranty
• Available in bulk quantities as a contractor pack for professional use

The AquaLock 3515R-1004CP reducing coupling is part of the Watts AquaLock push-to-connect fitting family — formerly known as SeaTech, now rebranded under the Watts AquaLock line. It is an efficient solution for plumbers and contractors requiring dependable, tool-free pipe connections at volume.

Specifications:

• Connection Size: 1/2" CTS x 1/4" OD
• Material: Lead-Free Polysulfone Thermoplastic
• Pack Type: Contractor Pack
• Ordering Code: 81902924
• UPC: 840213002947
• Series: 3515R