SKU: 7296883813

4.5" Exterior 90 (Vertical Outside 90) – Seamless One-Piece Design

Sale price$65.70 Regular price$73.00
Save 10%

Pay in installments of $18.25 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 10 - Aug 15

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

4.5" Exterior 90 (Vertical Outside 90) – Seamless One-Piece Design4. 5" Exterior 90 (Vertical Outside 90) Seamless One Piece Design The 4. 5" Exterior 90 (Vertical Outside 90) fitting is the perfect solution for creating clean, professional outside corners in HVAC line set cover systems with 4. 5" wide channel lengths. This one piece design clips onto the duct cover for a seamless, screw free look, while its adjustable depth and UV resistant construction ensure a secure, durable fit. For added customization, the

4.5" Exterior 90 (Vertical Outside 90) – Seamless One-Piece Design

The 4.5" Exterior 90 (Vertical Outside 90) fitting is the perfect solution for creating clean, professional outside corners in HVAC line set cover systems with 4.5" wide channel lengths. This one-piece design clips onto the duct cover for a seamless, screw-free look, while its adjustable depth and UV-resistant construction ensure a secure, durable fit.

For added customization, the exterior 90 can be easily trimmed with a box cutter to achieve the perfect fit for your installation. Shrinkwrapped with an additional quick-lock cam screw, this fitting is a must-have for achieving polished results in your HVAC project.

Key Features:

  • Adjustable Depth: Ensures a snug and secure fit for a variety of installations.
  • One-Piece Design: Clips directly onto the duct cover for a seamless, screw-free finish.
  • Customizable Fit: Easily trim excess material with a box cutter for a precise installation.
  • Shrinkwrapped Packaging: Includes 1 additional quick-lock cam screw for added convenience.
  • UV Resistant: Built to withstand sunlight and outdoor conditions, ensuring long-term durability.
  • Sleek and Professional Look: Ideal for outside corners, delivering a polished and cohesive appearance.

Why Choose the 4.5" Exterior 90?

The 4.5" Exterior 90 simplifies HVAC line set cover installations with its one-piece, screw-free design. Its adjustable depth and customizable fit make it a versatile and efficient solution for creating outside corners. Perfect for both professionals and DIYers, this fitting ensures a clean, durable finish while allowing for easy customization.

Pro Tip: Use a box cutter to trim excess material for a perfect fit in even the most challenging installations.

Shop with Confidence at MRCOOL DIY Direct

At MRCOOL DIY Direct, we provide high-quality, durable components like the 4.5" Exterior 90 to help you complete your HVAC installation with ease and precision.

Elevate your line set cover system with the 4.5" Exterior 90—seamless, durable, and UV-resistant!

Specifications:

  • Color Options: Gray, White, Brown
  • Width: 4.5 inches
  • Compatibility: Fits 4.5" wide channel lengths
  • Material: UV-resistant plastic
  • Packaging: Shrinkwrapped with 1 quick-lock cam screw

Achieve a polished and professional finish for your HVAC line set cover system with the 4.5" Exterior 90. Order now and customize your installation with ease!

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 7296883813

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 30 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Clutter Hater
Draper, US
★★★★★ 5
Nice, light hose with nozzle
Size: 25ft, Color: Black
Nice short expandable hose. I had a longer expandable one which got a big leak. So I bought this shorter one since I only use it to water the plants on the patio. So far, it works great; but people have to know that short means short. The nozzle fits this hose; my other nozzle is too big. So having the short hose and the right nozzle in one package works for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
S
Verified Purchase
Susanhapa
Grantham, US
★★★★★ 5
Love this light weight flexi hose!
Size: 50ft, Color: Black
Great hose. This is my third because the only downside is that the area connected to the spigot can crimp and ultimately leak. It’s easy to keep that from happening if you are the only one using the hose. But if others, like your kids or a garden helper use the hose, they don’t always recognize that.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
T
Verified Purchase
terrorized-by-grumpycat
Chelsea, US
★★★★★ 4
Weak but excellent please read.
Size: 50ft, Color: Black
Breaks a lot, but Is 100% convenient. My third annual purchase. Beats rubbing stuff off of twisted rubber hoses. Darned if u do. Darned if u don't. A 5-10 yr version one of these will outsell the entire market.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
T
Verified Purchase
theresa
Pawtucket, US
★★★★★ 5
good price / great filter
Style: 4 PACK, Pattern Name: Standard MERV 8
Aerostar is a good filter / merv 8 is the one for me, great air flow - Heat & AC.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
P
Verified Purchase
pawpaw
Dallas, US
★★★★★ 5
MERV-8
Style: 6 PACK, Pattern Name: Standard MERV 8
NOT QUITE HOSPITAL RATED, BUT VERY GOOD FILTER AT GOOD PRICE. DON'T CHANGE FILTERS TOO OFTEN: THAT TOP LAYER OF FILTERED MATERIAL STOPS LOTSA SMALLER NASTY BITS FROM GETTING THRU
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 27, 2025

recommand products