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Home Master TMJRF2E Jr. F2 Mini Countertop RO System

Model TMJRF2E
4.3/5 from 2,800 ratings
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Stages
3
Connection
Faucet diverter (included)
Filter Life
Pre-filters 6 months; Membrane 2-3 years
Ro Membrane
2000 GPD (high-flux)
System Type
Countertop (no installation)
Tds Rejection
90-95%

Home Master TMJRF2E Jr. F2 Mini Countertop RO System Review

Home Master Jr. F2: Countertop RO With No Installation

The Home Master TMJRF2E Jr. F2 connects to any standard kitchen faucet via a diverter valve (included) -- no drilling, no under-sink plumbing, no professional installation required. The diverter routes cold water from the existing faucet through the 3-stage RO housing and delivers purified water through a dedicated output nozzle that sits on the countertop. Rent-appropriate and apartment-compatible.

Three-Stage Filtration

Stage 1: 5-micron sediment pre-filter (removes particulates that foul the RO membrane). Stage 2: granular activated carbon + catalytic carbon pre-filter (chlorine and chloramine removal -- both oxidize RO membrane material). Stage 3: RO membrane (2000 GPD high-flux rating -- this is the membrane throughput, not daily production; the actual household output is rate-limited by the faucet diverter flow). TDS rejection: approximately 90-95%. No storage tank -- on-demand production fills a glass in 1-2 minutes.

Filter Life and Replacement

The sediment and carbon pre-filters should be replaced every 6 months or 2,000 gallons. The RO membrane every 2-3 years or 10,000 gallons. Home Master uses 2-inch x 10-inch standard filter housings -- replacement filters are widely available from multiple suppliers, not locked to Home Master brand purchases.

Pros
  • No installation -- faucet diverter only
  • Standard 2x10 filter housings -- non-proprietary replacements
  • On-demand output, no storage tank
  • Apartment/rental compatible
Cons
  • Diverter occupies existing faucet -- cannot use faucet and RO simultaneously
  • Large countertop footprint for an RO unit
  • Slower fill rate than tank-based systems

Full Specifications

Brand
Home Master
Model Number
TMJRF2E
Stages
3
Connection
Faucet diverter (included)
Filter Life
Pre-filters 6 months; Membrane 2-3 years
Ro Membrane
2000 GPD (high-flux)
System Type
Countertop (no installation)
Tds Rejection
90-95%
Filter Housing
2 x 10-inch standard (non-proprietary)

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