A service plumber needs to fit a washer/dryer drain, trap, and dryer vent in a tight 2-inch space behind the units in a new construction extension without a crawl space.

Vent boxes don't resolve the spatial conflict of fitting washer box drains and dryer vent simultaneously in 2 inches of clearance, and there's no integrated solution for tight spaces.

Severity

4High

Willingness to Pay

implied

Added

Jun 27, 2026

Workarounds Described

planning to have someone dig out under foundation to install drains

App Concept

TightSpace Vent & Drain Combo

An integrated, ultra-slim washer/dryer vent and drain junction box designed for 2-inch clearance. Combines washer drain trap, dryer vent connection, and plumbing access in one compact unit. Eliminates the need for separate boxes and allows installation before flooring.

Key Features

Ultra-slim profile (less than 2 inches deep) for tight spaces
Integrated dryer vent port and washer drain trap
Pre-sloped drain outlet for proper flow
Roughed-in plumbing stub-outs for easy connection

Target Users: Service plumbers working on new construction or renovations with limited behind-appliance clearance, especially in small bathrooms or laundry closets.

Revenue Model: $49-$79 per unit retail, sold through plumbing supply houses and online, with volume discounts for contractors.

Existing Solutions Mentioned

vent boxes from Lowes

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