Isn't there supposed to be 2 black o rings for the membrane?

As far as I know, the membrane doesn't come with o rings. If you buy the housing it does come with the o rings.

Cual es el máximo Tds de trabajo para esta membrana?

Concentration of Solution - maximim 2000 ppm

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Max Water 4" x 40" BW-4040 2400 GPD Brackish Water RO Membrane Perfect for Car Wash, Whole House & Industrial Applications | Compatible with AG4040FF, RE4040-BE and More for Versatile Water Solutions

Product ID: 587581806

Details

External testing certification
ISO 9001
Item weight
8 Pounds
Material
Polyamide
Product benefits
Removes and
Product dimensions
10.2D x 10.2W

💧2400 GPD capacity

⚙️90 ft² membrane area

🛡️99.5% salt rejection

Description

💧 Elevate your water game with pro-grade purity and unmatched reliability!

DURABILITY MEETS SAFETY - BPA-free, ISO 9001 certified, and built to last 24-36 months.
VERSATILE COMPATIBILITY - Fits top models like AG4040FF & RE4040-BE for seamless integration.
UNMATCHED FILTRATION POWER - Delivers up to 2400 gallons per day for relentless purity.
CUTTING EDGE TFC TECHNOLOGY - Advanced thin-film composite membrane ensures superior performance.
PRECISION ENGINEERED FOR NORTH AMERICA - Tailored to handle 2000-8000 PPM brackish water with 99.5% rejection.

Max Water's BW-4040 4" x 40" RO membrane offers premium brackish water filtration with a robust 2400 GPD capacity and 99.5% salt rejection. Engineered in the U.S. with advanced thin-film composite technology, it ensures durable, BPA-free performance tailored for North American water conditions. Compatible with leading membrane models and ISO 9001 certified, this membrane is ideal for car wash, industrial, and whole-house applications requiring superior water purity.

Specifications

ASIN	B07ZVYQKTQ
Benefits	Removes impurities and contaminants for clean and safe drinking water
Brand Name	Max Water
Customer Reviews	4.3 4.3 out of 5 stars (31)
External Testing Certification	ISO 9001
Item Dimensions D x W x H	10.2D x 10.2W x 101.6H centimetres
Item Weight	8 Pounds
Manufacturer	Max Water Canada
Manufacturer Part Number	104299
Material Type	Polyamide Thin-Film Composite
Model Number	BW-4040 / TW30-4040 2400 GPD
Number of Items	1
Unit Count	1.0 count

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