Key Features

• Ø125 mm round spigot — direct fit to 125 mm duct. 

• Gravity backdraught flaps — reduce reverse airflow when the fan is off. 

• Square fascia 170 × 170 mm for a tidy external finish. 

• White durable plastic fascia; designed for external wall mounting. 

• Part of a family with brown / terracotta / Cotswold stone variants. 

What’s Included

• MONV270W gravity grille (white) with Ø125 mm rear spigot.

• Fixings (as supplied by manufacturer/pack).

Ideal For

• External termination of bathroom, WC, utility, kitchen or MEV/dMEV duct runs using 125 mm duct. 

Installation Notes

• Connect to Ø125 mm duct; seal joints for airtightness and weather protection. 

• Mount vertically so gravity flaps swing freely; keep the outlet clear of obstructions. 

• Faceplate size is approx. 170 × 170 mm—check clearance and screw centres against the latest datasheet/site guide. 

Maintenance

• Wipe fascia and clean gravity flaps periodically to prevent sticking; inspect for debris/insect ingress. 

Technical Overview

• Type: Round gravity grille with backdraught flaps

• Spigot: Ø125 mm (rear)

• Fascia: Square, approx. 170 × 170 mm, white finish

• Mounting: External wall outlet

• Range: Matching colours (e.g., brown, terracotta, Cotswold stone).