Pelican PRO-RO 5-Stage Under-Sink Reverse Osmosis System

Pelican's PRO-RO is the brand's standard residential under-sink RO offering -- 5 stages, 50 GPD, NSF 58 certified TFC membrane, complete installation kit. Pelican is better known for its NaturSoft salt-free water conditioner and whole-home carbon systems than for its RO line, and the PRO-RO reflects this positioning: it is a solid, premium-housing conventional RO designed to complement a Pelican whole-home pre-treatment system rather than stand alone as the flagship product.

The filter housing construction is Pelican's distinguishing specification: high-impact polypropylene housings with metal filter cap collars (many budget RO systems use all-plastic cap collars that crack under UV exposure and over-tightening). The result is a system that physically holds up better in under-sink environments with temperature cycling and occasional rough service than commodity import systems. The housings carry a 5-year warranty (shorter than SpringWell's lifetime warranty but longer than most competitors).

Stage configuration: 5-micron PP sediment, 10-micron GAC carbon block, 5-micron carbon block, TFC RO membrane (NSF 58), GAC post-filter. This is a conventional 5-stage setup without remineralization -- Pelican sells a separate inline calcite cartridge ($30-$40) as an optional add-on for buyers who want mineral-balanced output. The 50 GPD output is adequate for a family of 3-4 with typical drinking and cooking use.

The PRO-RO pairs most naturally with Pelican's NaturSoft PC600 or PC1000 salt-free conditioner for households that want both scale control (NaturSoft handles the hardness calcium without removing it) and TDS/contaminant removal (the PRO-RO handles lead, arsenic, fluoride, and nitrate at the kitchen tap). This combination delivers essentially the same total water treatment outcome as a full softener + RO setup without the salt cost, brine discharge, or water waste of an ion-exchange softener.

Annual filter cost: $60-$80 (stages 1-3 annually; post-filter at 12 months). Membrane at 24-36 months ($30-$50 OEM). Pelican's customer service is US-based and known for responsive warranty handling.