Spectrum’s WW-4040 and WW-4021 fibreglass-wrapped RO membranes deliver uncompromising water quality at an attractive price. They combine high performance with durable build quality, making them an excellent choice where cost savings matter. With a 98.5% rejection rate they produce pure, crystal-clear water and outperform many established membranes on the market. They are also a reliable alternative to cheaper, lower-quality entry-level models. Ideal for anyone who needs a high yield of filtered water with a consistent, high-quality finish.
✓ Energy-efficient, high water output
✓ 98.5% rejection rate
✓ Fibreglass-wrapped, durable build
✓ Strong value for money
