T3 Source Showerhead (73311)

Checked against its certification listings: what they cover, what the maker claims, and what it costs over five years.

Shower

Listings checked Oct. 16, 2026

Certified to

NSF/ANSI 177IAPMO listingchecked Oct. 16, 2026

Certified for: Chlorine

Maker’s list price

$200

as of Oct. 16, 2026

Each replacement, at list price

Source showerhead replacement filter (73305): $30

Five years, 40 gallons of showers a day

$470

0.6¢ per gallon

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Price on Amazon The maker’s page

List price from the maker’s site, checked Oct. 16, 2026. Prices change; the maker’s page is the final word.

What the listings say

Standard	Certifier	Claims	Listing
NSF/ANSI 177	IAPMO	Chlorine	Read the listing checked Oct. 16, 2026

Certified for, and claimed

Certified, by a listing

Chlorine

Claimed by the maker only

hydrogen sulfide (rotten-egg smell)
iron oxide
dirt and odors

What it costs over five years

40 gallons of showers a day, EPA WaterSense’s figure for the average family, all through this one shower. Installation not included.

Item	Replaced	Count	Amount
System, with first media	—	1	$200
Source showerhead replacement filter (73305)	Every 6 monthsmonth rating	9	$270

Five-year total$470

Per gallon0.6¢

Run it for your household

Worth knowing

IAPMO’s certificate words the claim "Chlorine"; NSF/ANSI 177 certifies only free available chlorine. The hand-held Source (73312), also $199.99, is listed too, but its 73306 filter is certified for 3,000 gallons rather than 10,000, and costs $39.99.

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