Aqua Treatment Service ATS4-739 Equivalent Replacement UV Lamp

Part Number:
Lamp Category:
Varied Ship Date - Contact Us In Stock


Watts: 33 Watts
Length: 739 mm
Base: B16
Base Description: 4 Pin Single Ended (B16)
Qtz. OD: 15 mm
Wiring: Preheat
Output: Standard
Category: Preheat
Type: L
Wires: 2
Description: ATS4-739 Aqua Treatment Equivalent Replacement Lamp
Note: Color of Lamp Base has no bearing on operation or use, and should not be considered when determining lamp needed.

This lamp is an equivalent replacement lamp for the following:

Brand Model
American Water Service PT12
Aqua Treatment Service / ATS ATS4-739, DWS-12V, EV12E, GDS-12, PFC-12, SE-12V, Tri-12
Glasco UV L-040729
Ideal Horizons 42052
Neptune Tri-12, WTA4-739
PurTest PT-12, P12-4-739
UV Superstore GL739/4, GPH739T5L/4
Water Treatment & Accessories 05-0719, Tri-12, WTA4-739
Wedeco 42052

Disclaimer: This is an Atlantic Ultraviolet Corporation® STER-L-RAY® brand lamp. It can be used as an equivalent replacement lamp for other brands.

ArmorLite™ Safety Shield is available for use with most STER-L-RAY ® Germicidal Ultraviolet Lamps. Contact our Ultraviolet Application Specialists to discuss the advantages of using germicidal lamps protected by the ArmorLite™ Safety Shield in your installation.

Our STER-L-RAY ® brand of Germicidal Ultraviolet Lamps can be used as equivalent replacement lamps for over 250 equipment brands and 5,000 models of ultraviolet equipment besides Atlantic Ultraviolet’s Air and Water Purifiers.

Can’t find lamp you are looking for? Each of our UV Application Specialists has access to an extensive cross referencing interface. Call us directly at 1-631-273-0500, Monday through Friday, 7am–6pm EST, email us at

Shipping Info

    Items marked "Ready to Ship - In Stock" are ready to ship and will do so promptly. Items marked "Varied Ship Date - Contact Us" are in production, and the ship date varies. Please place order & contact us for ship date.


Part Category:
Base Category (Pins per End):
4 Pin Base
Cross Reference Brands A:
Aqua Treatment Service EV12E, ATS DWS-12, American Water Service PT12, ATS EV12E, Aqua Treatment Service ATS EV12E, Aqua Treatment Service ATS4-739, Aqua Treatment Service DWS-12V, Aqua Treatment Service SE12V, Aqua Treatment Service Tri-12, ATS ATS4-739, ATS DWS-12V, ATS SE12V, ATS Tri-12
Cross Reference Brands G to O:
Ideal Horizons 42052
Cross Reference Brands P to S:
Purtest PT12
Cross Reference Brands T to Z:
WTA Triton 12, Wedeco 42052, WTA 05-0719, WTA 4-739
Lamp Length:
24 - 36 in. (611 - 914mm)
Ozone Producing:
Part Type Equipment Brand Model / Part #
Lamp American Water Service PT12
Lamp Aqua Treatment Services, Inc. ATS4-739
Lamp Aqua Treatment Services, Inc. DWS-12V
Lamp Aqua Treatment Services, Inc. EV-12E
Lamp Aqua Treatment Services, Inc. GDS-12
Lamp Aqua Treatment Services, Inc. PFC-12
Lamp Aqua Treatment Services, Inc. SE-12V
Lamp Aqua Treatment Services, Inc. Tri-12
Lamp ATS ATS4-739
Lamp ATS DWS-12V
Lamp ATS EV-12E
Lamp ATS GDS-12
Lamp ATS PFC-12
Lamp ATS SE-12V
Lamp ATS Tri-12
Lamp Glasco Ultraviolet L-040729
Lamp Ideal Horizons 42052
Lamp Neptune Tri-12
Lamp Neptune WTA4-739
Lamp PurTest P12-4-739
Lamp PurTest PT-12
Lamp Ster-L-Ray 05-0719
Lamp UV Superstore, Inc. GL739/4
Lamp UV Superstore, Inc. GPH739T5L/4
Lamp Water Treatment & Accessories 05-0719
Lamp Water Treatment & Accessories Tri-12
Lamp Water Treatment & Accessories WTA4-739
Lamp Wedeco UV Technologies, Inc. 42052
Lamp WTA 05-0719