2 Pack - 4" Diameter 90 Degree Adjustable Elbow - 30 Gauge Galvanized - Crimped End Connection Compatible with Duct 4" Actual Filter Size – 29

Actual Filter Size – 29 3/4"w x 17 3/4" x 1"

Design – Removable frame for easy filter change & cleaning - uses a 1" thick filter

The L-shaped brackets

MERV 8 - Your Ideal Choice: Experience the perfect balance of filtration with MERV 8 rating

Durability – Our Galvanized Duct Elbow is made of durable galvanized sheet metal with crimped ends for easy fitting and secure connection

2 Pack - 4" Diameter 90 Degree Adjustable Elbow - 30 Gauge Galvanized - Crimped End Connection Compatible with Duct 4" Actual Filter Size – 29+ Product Details Size 4" round duct sheet metal elbow 30 gauge galvanized crimped end connection adjustable from 5 90 Premium Quality Made of galvanized metal to prevent corrosion, oxidation & rust from water & moisture that lasts longer requiring less maintenance Save money with this energy efficient material, maximizes airrflow and reduces fire hazards. Applications 30 Gauge thick & made of thick & durable galvanized sheet metal used for HVAC