
Hydro Systems, Inc.
Builder Duo Oval
All Hydro Systems Builder’s
Series bathtubs and whirlpools are backed by our
exclusive 5 year limited
warranty and include the
standard features.
Available Sizes:
66”L x 44”W x 18½”D
60 Gallons
29132 Avenue Paine, Valencia, CA 91355
Phone (661) 775-0686 • Fax (661) 775-0668
hydro@hydrosystem.com • www.hydrosystem.com
74”L x 44”W x 18¾”D
80 Gallons
Builder Model Feature:
White/Almond/Bone/Natural
Acrylic/Fiberglass Bathtub
Integral Wood Base
6 Jets Adjustable/Directional
Air Switch
Silent Air Induction
Anti-Vortex Safety Suction
1¼ hp UL Listed Pump, mounted
Sturdy Cardboard Box
Optional Equipment
Available as Tub only, Thermal Air,
Whirlpool
Inline Heater
Waste & Overflow
Polished Chrome
Polished Brass
System Trim
Polished Chrome
Polished Brass
Hydro Coat
Hydro Express Quick Ship
Approvals & Listings
Commonwealth of Massachusetts
UPC & USPC - US & Canada
Electrical Component Electrical Requirements
Whirlpool (1.25 HP Single Speed Pump, 120V) 1 Dedicated 20 Amp GFCI Circuit
Thermal Air (1 HP Blower with 600 Watt Heater) 1 Dedicated 20 Amp GFCI Circuit
Inline Heater
600 W Shares Pump Circuit
1500 W 1 Dedicated 20 Amp GFCI Circuit
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Hydro Systems, Inc.
29132 Avenue Paine, Valencia, CA 91355
Phone (661) 775-0686 • Fax (661) 775-0668
hydro@hydrosystem.com • www.hydrosystem.com
Must be set in Mortar Base
AS SHOWN:
Whirlpool option w/ standard jets
ALSO AVAILABLE:
Soaking Tub Only, Thermal Air,
Builder Duo Oval
Must be set in mortar base.
Model GC AC A B C D E F G H I J K L Jet Pump
6644 N/A √ 65½” 43¾” 12¾” 32¾” 4½” 3” 36” 18½” 1¾” 16” 26” 2¾” 8 1.25
7444 N/A √ 74¾” 44½” 12¾”
5” 3” 43” 18¾” 1¾” 16¼” 26” 2¾” 8 1.25
37⅜”
Framing Dimensions
Island Drop-In
Model (L)ength (W)idth (H)eigth Finish
6644 64” 42”4” 17¾”
7444 72” 42””” 18”
Disclaimer: Certain options or altering the pump/blower location may
cause the pump/blower to extend beyond the tub decking.
For cutout dimensions wait for unit to arrive.
All specifications subject to change without notice.
Wat.Cap.
60 gal.
80 gal.
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