Name: Master Flow 6.625-in x 6.625-in Aluminum 5.0-in Dia Rain Cap
Brand: Master Flow
SKU: 1000896470
Price: 51.98 USD
Availability: InStock
Rating: 4.6 (88 reviews)

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General
Series Name	Adjustable Versa Cap	Material	Aluminum
Type	Rain Cap

Dimensions
Diameter (Inches)	5	Length (Inches)	6.625
Height (Inches)	4.5	Width (Inches)	6.625

Features
Arrestor Included	No	Gauge	24
Crimped	No

Certifications
CA Residents: Prop 65 Warning(s)	No	Safety Listing	UL safety listing

Warranty
Warranty	None

Miscellaneous
UNSPSC	40141900

Check out the Best Selling Duct Caps on Lowes.com

Review

4.6 out of 5

88 Reviews

2 Star

86% Recommend this product

Ratings may include incentivized customer reviews.

+ 2

What Customers Are Saying

Customers overwhelmingly praise this adjustable vent cap for its seamless fit and effortless installation, often completed in minutes. The adjustable design accommodates pipe diameters from 3" to 9", making it ideal for non-standard sizes and hard-to-replace vents. Reviewers highlight the lightweight aluminum construction, secure bolt attachment, and reliable performance in high winds. Many appreciate the debris and critter filter. A few note that hardware may rust over time and mention concerns about edge sharpness, though most consider it a worthwhile, practical solution.

Customer review summary generated by AI, including incentivized reviews.

88 Customer Reviews

Sort By

Carbon Vent

Would Recommend

Bought about 3 weeks ago, had trouble with the older vent, this keeps rain out, I put 1 on my rental House a few years ago, & water stopped coming down the vent.

CustodianSeptember 1, 2026
From 11.625-in x 11.625-in Aluminum 9.0-in Dia Rain Cap Verified Purchaser

Was this Review Helpful ?

Response from Master Flow

Happy to hear that you are satisfied with our product and thank you for your feedback. If you have any other inquiries about our Master Flow products... Read More

Master FlowSeptember 9, 2026

MasterFlow

Is to install

Would Recommend

This product worked great, my son-in-law was able to get up on the roof and put this on the pipe in about 5 minutes. It is adjustable and the pipe was 6 1/2 -7 inches and it fit very secure.

SusyMay 23, 2026
From 9.5-in x 9.5-in Aluminum 7.0-in Dia Rain Cap Verified Purchaser

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/92ee58c7-8847-5c1b-98e4-733102594316

Was this Review Helpful ?

Response from Master Flow

Glad you are satisfied with your Master Flow purchase. Thank you for the feedback. If you have any other inquiries about our Master Flow products ple... Read More

Master FlowMay 28, 2026

MasterFlow

perfect fit

Would Recommend

great little cap that worked perfect

blemonsApril 17, 2026
From 11.625-in x 11.625-in Aluminum 9.0-in Dia Rain Cap Verified Purchaser

Was this Review Helpful ?

great little cap

Would Recommend

worked perfect for my application

blemonsApril 17, 2026
From 9.5-in x 9.5-in Aluminum 7.0-in Dia Rain Cap Verified Purchaser

Was this Review Helpful ?

Response from Master Flow

Glad you are satisfied with your Master Flow purchase. Thank you for the feedback. If you have any other inquiries about our Master Flow products ple... Read More

Master FlowApril 20, 2026

MasterFlow

Adjustable

Would Recommend

The cover was adaptable to various diameter sized openings.

DeborahMarch 31, 2026
From 11.625-in x 11.625-in Aluminum 9.0-in Dia Rain Cap Verified Purchaser

Was this Review Helpful ?

Response from Master Flow

Glad you are satisfied with your Master Flow purchase. Thank you for the feedback. If you have any other inquiries about our Master Flow products ple... Read More

Master FlowMarch 31, 2026

MasterFlow

Lowes...THE BEST!

Would Recommend

Absolutely the BEST! Exactly what I needed.

SusieJanuary 22, 2026
Verified Purchaser

Was this Review Helpful ?

Response from Master Flow

Glad you are satisfied with your Master Flow purchase. Thanks for the feedback. If you have any other inquiries about our Master Flow products please... Read More

Master FlowJanuary 26, 2026

MasterFlow

The item was exactly what i needed

Would Recommend

ButchDecember 13, 2025
From 9.5-in x 9.5-in Aluminum 7.0-in Dia Rain Cap Verified Purchaser

Was this Review Helpful ?

Response from Master Flow

Glad that you are satisfied with your purchase and thank you for the review. If you have any other inquiries about our Master Flow products please em... Read More

Master FlowDecember 15, 2025

MasterFlow

Might need to be painted.

Would Not Recommend

I needed a new cap, the roofers put it on while a new roof was being installed. I provided them with a can of spray paint but it wasn’t used, that’s ok. I don’t think they had any issues or problems, so therefore, I am satisfied.

NancydNovember 22, 2025
Verified Purchaser

Was this Review Helpful ?

Response from Master Flow

We are glad to hear that you are satisfied with the product.
If you have any further inquiries about our Master Flow products, please contact us... Read More

Master FlowNovember 24, 2025

MasterFlow

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COMPARE PRODUCTS

		Name	Current Item Master Flow6.625-in x 6.625-in Aluminum 5.0-in Dia Rain Cap
		Ratings	88
		UNSPSC	40141900
		CA Residents: Prop 65 Warning(s)
		Width (Inches)	6.625
SelkirkCAP RAIN PVNT 3 3VP-VC	Broan BD6 Pressure Relief Damper with Wall Cap and 6 Inch Collar	Broan 641FA 6 Inch Round Duct Aluminum Wall Cap without Damper	Selkirk Corp 243805 Horizontal Termination Stove Pipe Cap 3 Inch Stainless Steel	Lambro117W Plastic Wall Cap (White)	Wudkey4 Inch Vent Cover Outside with Removable Mesh and Rubber Cushioned Non-Return Flap	Wudkey4 Inch Galvanized Steel Roof Vent Cap	Wudkey6 Inch Vent Cover Outside with Removable Mesh and Rubber Cushioned Non-Return Flap	Wudkey8 Inch Vent Cover Outside with Removable Mesh and Rubber Cushioned Non-Return Flap

40141900	40141900	40141900	40141900	40141900	40141900	40141900	40141900	40141900

11		9	8	10.2	2.24	9.3	2.3	10