Jacuzzi RIV6638BUXXXXA Almond 66" x 38" Riva® Drop In Soaking Bathtub with Universal Drain

- Item #: BCI1279627

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This product has additional required/recommended options. To configure, add to your cart.

  • Tub Waste Required

Product Features:

  • Covered under Jacuzzi's limited lifetime warranty for tub, with a 2 year warranty that covers labor and travel costs
  • Tub constructed of light, durable and easy-to-clean acrylic
  • Soaking bath – Provides the user a soothing and relaxing experience
  • Safe for Bath Salts - Enjoy the effervescence of bath salts and oils. These elements will not damage Jacuzzi® soaking tubs or tub components.
  • Tru-Level™ - Self-leveling base system offers superior structural integrity and easy installation
  • Made in the USA- All Jacuzzi® tubs are made exclusively in Valdosta, Georgia
  • Drop-in and undermount installation types provide the installer with multiple installation options
  • A textured slip-resistant bottom takes the worry out of slipping and sliding as you move about the tub
  • Equipped with an overflow assembly permitting the user to enjoy a deep soak without worrying about spillage
  • Tub Drain Not Included -When adding this tub to your shopping cart, you will be offered the correct tub drain for this model tub. Be sure to select the finish that will match your tub faucet

Product Technologies / Benefits:

  • Material - Acrylic: A strong, flex resistant material with a smooth finish that resists chipping and cracking, as well as being easy to clean.

Product Specifications:

  • Overall Height: 19-1/2" (measured from the top of tub rim to the bottom of basin)
  • Overall Width: 38" (measured from back most to front most point on outer rim)
  • Overall Length: 66" (measured from left most to right most point on outer rim)
  • Water Depth: 14-3/4" (depth of water at tub’s maximum capacity)
  • Maximum Water Capacity: 57 – gallons
  • Drain Location: Reversible

Additional Jacuzzi Links

Our SKU: Jacuzzi RIV6638 BUX XXX

This product is listed under the following manufacturer number(s):

*Denotes a finish or option that has been discontinued

Jacuzzi RIV6638BUXXXXA Product Specifications

Specification Sheet
Jacuzzi University
Apron Front No
Basic Controls No
Capacity (Gallons) 57
Chromatherapy No
Collection Comfort
Comfort Whirlpool No
Comfort Whirlpool Plus No
Country Of Origin USA
Depth 14.75
Drain Placement Left, Right
Height 19.5
Illumatherapy No
Installation Type Drop In, Undermount
LCD Controls No
Length 66.25
Lighting No
Luxury Controls No
Luxury Whirlpool No
Made in America Yes
Material Acrylic
Number Of Bathers 1
Overflow Yes
Overflow Height 14.75
Product Weight 96
Pure Air No
Salon Spa No
Soaking Yes
Sound Dampening No
Theme Modern
Tub Shape Oval
Width 38.25

Installation Resource Center

Whether you are installing the product yourself or hiring a professional, our installation Resource Center has everything you need to get your project done. Visit the Installation Resource Center to get started.

Jacuzzi RIV6638 BUX XXX Reviews

  • where do you sell the drain assembly for the above product ?

    A. The drain assembly part number for the Jacuzzi RIV6638 BUX XXX is X559.

  • How many gallons of water does this tub hold?


    The Jacuzzi RIV6638 BUX XXX holds a maximum of 56 gallons.

  • what are the tub well dimensions

    A. The Jacuzzi RIV6638 BUX XXX is 19-1/2" H x 38-1/4" Wide x 66-1/4" L.

  • what is the timed purged cycle on this product? Isn't this a simple soak tub?

    A. The Jacuzzi RIV6638 BUX XXX is a soaking tub, there is no Timed Purge Cycle. That is a mistake on the site and I will have it corrected.

  • What are the bathing well basin dimensions at the bottom?

    A. The Jacuzzi RIV6638 BUX XXX is going to be 45" in length. Middle of the tub width is going to be 25" and the end of the tub you are looking at a width of 16".

  • What is the INSIDE length dimension at the rim?

    A. The Jacuzzi RIV6638 BUX XXX measures 58" in length at the top of the inside rim by 32".

  • Does the Jacuzzi RIV6638 come with the overflow and drain assembly? If yes, what is the finish?

    A. The Jacuzzi RIV6638 BUX XXX does not come with the drain. You will need to order the HP55 and it comes in chrome, brushed nickel and oil rubbed bronze.

  • Does the RIV6638 come with the overflow and drain assembly? If yes, what is the finish? Can it be brushed nickel?

    A. The HP55 drain kit for the Jacuzzi RIV6638 BUX XXX is available in the brushed nickel finish.

  • What is the difference between Reversible drain vs Center drain?

    A. The Jacuzzi RIV6638 BUX XXX reversible drain means it can be installed on with the drain on either the left or right sides. A center drain means what it's name implies, where the drain is installed in the center.

  • How wide is the tub lip?


    The Jacuzzi RIV6638 BUX XXX tub deck is 3". 

  • where do you sell the drain assembly for the above product ?



    The drain assembly and tub waste for the Jacuzzi RIV6638 BUX XXX is the LH338. 

  • What are the sump measurements and rim measurements?


    The Jacuzzi RIV6638 BUX XXX dimensions are 66.25"L x 38.25"W x 19.5"H. The (top) Inside Rim measures 58"L x 32"W. The Interior Length (Bottom): is 53"L x (Bottom): 30"W.

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