GTDSupply Prefabricated Durable Polystyrene Waterproof Cementitious Shower Niche, 16 Inch x 28 Inch, for Tiled Shower Surround (GTD1628ST) hmembrane Extended Working Time: Self-levelling cement

Extended Working Time: Self-levelling cement underlayment with extended working time for easy placement and smooth finishing

smart underfloor heating control using the Nuheat Signature thermostat

Before applying the grout

Requires premium modified thin set mortar for proper installation

PRIMER-PS can be used in interior applications where increased adhesion is required over various porous and non-porous substrates

GTDSupply Prefabricated Durable Polystyrene Waterproof Cementitious Shower Niche, 16 Inch x 28 Inch, for Tiled Shower Surround (GTD1628ST) hmembrane Extended Working Time: Self-levelling cementProduct Features: Fully Waterproof Construction: Engineered from high density extruded polystyrene, this niche ensures complete waterproofing for tiled shower wall assemblies in wet areas. Prefabricated Design: Ready to install niche eliminates need for additional waterproof membranes or coatings, saving installation time and reducing labor costs. Built In Adjustable Shelf: Includes integrated shelf for flexible storage design, allowing customization