3.5in High Shower Threshold Water Dam 67in - Keeps Water Inside Shower

In this review of the Duzzy 3.5in High Shower Threshold Water Dam the bottom line is straightforward: it is a practical, low-effort solution for homeowners looking to increase a shower curb height and keep water contained. The 67in length and 3.5in profile make it a clear choice for walk-in showers or shower pans where a taller dam is needed to stop splashes and retain a liner. The reviewer found the soft rubber material and full-adhesive back make installation simple, while the ability to trim the strip to size adds useful flexibility.

Key Features

• 67in length: long continuous strip covers an entire standard threshold without seams for many shower openings, reducing potential weak points.
• 3.5in height: the taller profile helps retain water and liner inside the shower to improve wet and dry separation in the bathroom.
• Soft silicone material: flexible, medical/aviation-grade inspired rubber adapts to slight floor irregularities and returns to shape after bending.
• Full-adhesive back: ready-to-place installation holds the dam in position quickly and simplifies fitting during a remodel or minor repair.
• Trim-to-fit convenience: can be cut with a utility knife to match the exact length or create small segments for irregular layouts.
• Multipurpose use: suitable for shower pans, kitchen sinks, toilets, and other areas that need a low water barrier in the home.

Who It's For

The Duzzy water dam is best for DIYers, renters with permission for nonpermanent fixes, and homeowners tackling a shower liner or threshold that currently allows water to escape. It is particularly useful when you need a quick, flexible way to raise the dam height without rebuilding tile or curb work.

It is less appropriate for permanent structural solutions where a tiled curb or professional waterproofing is required; anyone needing a full waterproof membrane or who cannot use an external adhesive should consider a professional remodel instead.

Pros & Cons

Pros

• Easy to cut and trim to precise lengths for clean installation along a threshold.
• Height and flexibility make it effective at keeping water and shower liners contained.
• Adhesive backing speeds installation and holds the dam in place without complex tools.

Cons

• Adhesive is permanent and the product recommends adding sealant for long-term leak prevention, which is sold separately.
• Not a substitute for full structural waterproofing in extensive remodels.

Specifications

Length	67 in
Height	3.5 in
Width	1.5 in
Material	Soft silicone/PVC rubber
Installation	Full-adhesive back, trim-to-fit with utility knife
Recommended use	Shower threshold, shower pan, kitchen sink edges

Our Verdict

The Duzzy 3.5in high shower threshold water dam is a practical value pick for anyone needing a quick and effective way to raise curb height and keep water inside a shower area. It combines a useful 67in length, flexible material, and simple adhesive installation to solve common leakage and liner containment issues without major work. For minor renovations or temporary fixes it offers good functionality, though permanent waterproofing projects will still require professional methods.

Frequently Asked Questions

Can I cut this to fit my shower?
Yes, the strip is designed to be trimmed with a utility knife to match your exact length needs.

Is adhesive included for permanent sealing?
The product has a full-adhesive back for placement but recommends applying silicone sealant at the base for long-term leak prevention; sealant is not included.

Will it work on irregular floors?
The soft silicone-like material is flexible and can adapt to small floor irregularities, but very uneven surfaces may need additional prep for a watertight seal.