Master Flow, a GAF brand under privately held Standard Industries, shows a heavily concentrated retail footprint in Grips Intelligence in-store data spanning January 1 to August 31, 2026 across Home Depot, Lowe's, and Amazon. Home Depot accounts for 79.6% of year-to-date revenue, with Lowe's at 16.8% and Amazon contributing just 3.6%. Average product price sits at $38.54 for the period, though the most recent month tracked reached $44.66, an 8.8% increase over the measurement window. Revenue rose 4.8% month over month in the latest period, but remains down 3.6% across the June–August timeseries. That combination of firming prices against slightly softer overall revenue suggests mix shift toward higher-ticket items rather than broad volume expansion.
OVER TIME
Over the last three months, revenue on tracked channels has declined by 4% from Jun to Aug.
OVER TIME
Over the last three months, average selling price on tracked channels has increased by 9% from Jun to Aug.
REVENUE SHARE
Revenue distribution across product categories for Master Flow on Amazon.
REVENUE SHARE
Revenue distribution across tracked channels for Master Flow.
BY REVENUE
Master Flow sells 90% online and 10% offline. Online runs through 3 channels; offline through 1.
Online
90%
10%
Offline
Online channels
90%
Offline channels
10%
BY REVIEW COUNT
Across 266K ratings on 3 channels, Master Flow averages 4.3★. Most reviews for the products are in the 4.4–4.6 range.
BRAND AVERAGE
4.3
/ 5
From 266K ratings
Products are bracketed by their average rating, so all of an individual product's reviews fall into one bracket. This isn't a per-star breakdown of individual reviews.
BY REVENUE
$234.90
Price
$90K
Revenue
$149.99
Price
Revenue
$329.99
Price
Revenue
$89.99
Price
Revenue
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