Why did my tds go from 0 to 2. I flushed for 2 hours tds started at 1 then went to 2. With my old 3 year old filter I was at 0 tds

There might be different reasons causing this problem. It is better to empty the tank 2-3 times after changing filters. You may also replace other filters and sanitize the system if you need to. You may check online about how to sanitize your water filter system. Please remove all the filters from the system before you start to sanitation procedure. If these don’t solve the problem, you may contact with Amazon customer service to return the item.

Is this Filmtec membrane made by Dow or Dupont?

DuPont merged with FilmTec company and became a part of Dow FilmTec. Eventually, they will produce all the Residential FilmTec Membranes, and we started selling them too.

is this made in usa? I see another listing with the same numbers on it that says "residential" and it says imported.. Its Dow and numbers are the same

i be leave if it says imported , its still an American product that's just assembled in another country. Dont worry they work real good ,Total TDS 000.

does this fit the 10"x2.5" canisters

The housing size for this membrane is approximately 12.5” x 2.5”. If your housing size is 10 inch, this membrane can’t fit in because the membrane itself measures as 11-3/4” x 1-3/4”. However, if you are replacing the same brand (Dow Filmtec) undersink RO membrane, there won’t be a problem. You may also check with your RO manufacturer.

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Filmtec 75 GPD Filmtec 住宅用 RO メンブレン

Product ID: 741050408

Details

External Testing Certification
ANSI NSF
Item Weight
0.4 Pounds
Material
carbon
Product Benefits
Removes
Product Dimensions
4.4D x 29.8W x

✅NSF/ANSI Standard 58 certified

💧75 GPD high flow capacity

🛡️98% salt rejection efficiency

R1756

Duties & taxes included

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Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Elevate your home water game with Filmtec’s elite RO membrane!

COMPACT COMPATIBLE - Fits standard 1.8" x 12" housings for easy upgrade
CERTIFIED RELIABILITY - Meets NSF/ANSI 58 standards for trusted performance
UNMATCHED WATER PURITY - Removes up to 98% of salts for crystal-clear hydration
DURABLE CARBON COMPOSITE - Advanced membrane tech engineered for longevity
HIGH CAPACITY FILTRATION - Delivers 75 gallons per day to keep your home flowing

The Filmtec TW30-1812-75 reverse osmosis membrane offers a robust 75 gallons per day capacity with 98% salt rejection, certified to NSF/ANSI Standard 58. Designed for residential use, it fits standard RO housings and features advanced thin-film composite technology for consistent, high-quality water purification. Trusted by professionals and homeowners alike, this membrane ensures superior water clarity and reliability.

Specifications

ASIN	B079VPWRBP
Amazon 売れ筋ランキング	ホーム＆キッチン - 266,747位 ( ホーム＆キッチンの売れ筋ランキングを見る ) 整水器交換用カートリッジ - 273位
GTIN (Global Trade Identification Number)	00826333000063, 07898962510407
UPC	826333000063
おすすめ度	5つ星のうち4.0 1 確認
ブランド	DOW FILMTEC
ブランド名	DOW FILMTEC
メーカー名	Filmtec
メーカー型番	TW30181275
モデル名	TW30
ユニット数	1.0 個
付属コンポーネント	新メンブレン
品目の寸法（D x W x H）	4.4奥行き x 29.8幅 x 4.4高さ cm
商品の入り数	1
商品の利点	不純物除去
商品の寸法	4.4奥行き x 29.8幅 x 4.4高さ cm
商品の重量	0.4 ポンド
商品特長	不純物除去
商品種別	フィルムテックメンブレン
外部テスト認証	ANSI, NSF
外部機関認定情報	ANSI, NSF
材質	カーボン
素材	カーボン

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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R1756

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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