Crane has been an Innovator in Reverse Osmosis since 1975

The Reverse Osmosis Process:
    The Reverse Osmosis Process uses a semi-permeable membrane to separate and remove dissolved solids, organics, pyrogens, submicron colloidal matter, viruses and bacteria from water. The process is called 'Reverse" osmosis since it requires pressure to force water across a membrane, leaving impurities to pass to a waste stream.

Reverse osmosis (RO) is capable of removing 95-99% of total dissolved solids (TDS) and 99% of all bacteria, thus providing safe, purified water. Reverse osmosis reverses the natural tendency of a semipermeable membrane to move salts from low concentrations to high concentrations.

How it Works...
A semipermeable thin-film composite (TFC) membrane flat sheet is laminated to a porous carrier and folded around a permeate spacer, membrane face in, to create an envelope which is glued along the free edges. Each “leaf”(as many as 30 - yielding as much as 400 square feet in an 8” element) is then sandwiched between feed spacers and glued to the permeate tube. The permeate tube is perforated to collect water that migrates across the membrane via reverse osmosis, so-called because, in normal osmosis (demonstrated in living cells of plants and animals), salty water migrates across a semipermeable membrane to raise the salt concentration of less salty water on the other side. Under pressure, this process is reversed. The channels or pores of the polyamide membrane are around 0.001 micrometers. If you could scale up a one foot square piece of membrane so that the pores were the size of pin holes, you would wind up with 635,000 square feet; that is 14.6 acres, or more than 11 football fields!

EPRO™ reverse osmosis systems from Crane Environmental pioneered RO for homes and businesses in the mid 1970’s and continue to purify millions of gallons per day in over 80 countries world-wide.
EPRO 1200
1200 GPD
EPRO 1500
1500 GPD
EPRO 3000
3000 GPD

Epro™ 'A' Series Reverse Osmosis Systems
Epro™ 'E' Series Reverse Osmosis Systems
Epro™ 'P' Series Reverse Osmosis Systems
Epro™ Wall Mount Data Sheet

Epro™ Small RO Data Sheet
Epro™ Custom Engineered Systems

Contact Robert Sain your local Crane RO Dealer