Gruen Linear Drain Flange Kit for Waterproof Membrane Shower Installations

The Gruen Linear Drain Flange Kit is the essential upgrade accessory for installing compatible Artstream, Pera, and Highline linear drains in bonded waterproof membrane shower systems. Designed to simplify waterproofing at the drain connection, this kit helps installers create a reliable, watertight transition between the drain body and membrane.

Features

• Built for bonded waterproofing systems
  Lets you integrate compatible Gruen linear drains into modern waterproof membrane shower assemblies.

• Complete upgrade kit
  Includes the key components needed to adapt the drain for waterproof membrane installation.

• Compatible with select Gruen linear drains
  Designed for use with Artstream, Pera, and Highline models.
  Confirm exact model compatibility before ordering.

• Helps create a watertight drain-to-membrane connection
  Supports a secure transition point in the most critical area of the shower system.

• Ideal for new installs and renovation work
  Useful when converting or upgrading a shower to a bonded waterproofing method.

• Installer-friendly setup
  Simplifies the process of preparing a compatible linear drain for membrane integration.

• Durable construction for long-term performance
  Made for wet-area shower applications where reliability matters.

Compatibility / fitment

Designed for use with compatible:

• Gruen Artstream linear drains

• Gruen Pera linear drains

• Gruen Highline linear drains

Best for:

• Bonded waterproof membrane shower installations

• Tile shower builds using waterproof sheet or bonded membrane systems

• Renovation projects where a compatible Gruen drain is being adapted for membrane waterproofing

Confirm needed before purchase:

• Exact compatible drain model / generation

• Drain size compatibility

• Whether this kit fits all channel lengths and outlet configurations

• Any regional or manufacturer-specific installation requirements

Installer warning:
This kit should be matched to the correct Gruen drain model. Ordering by appearance alone may result in fitment issues.