HM Digital DM-1: Commercial In-Line Dual TDS Monitor
in-line TDS monitor · TDS · 2 lines
M.R.P. ₹3,000 Save ₹450
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
By water problem
We list 39 ro purifier spare parts from 6 brands, priced ₹374 to ₹43,600, every one from the brand's own Indian store. The highest-scoring is the HM Digital DM-1: Commercial In-Line Dual TDS Monitor at ₹2,550.
Genuine RO spares from the brands' own stores: membranes, sediment and carbon filters, cartridges, booster pumps and in-line TDS monitors. Replacing pre-filters on time is what makes a membrane last; an in-line monitor tells you when the membrane itself is going. Check compatibility with your purifier model before ordering.
Scores are calculated from each product's published specifications and price within its own product family; nobody at BestPurifier has tested these products.
Filter by price, brand and feature, or sort by price and running cost. Tick Compare on any two to put their specs side by side.
20 water treatment products
in-line TDS monitor · TDS · 2 lines
M.R.P. ₹3,000 Save ₹450
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
M.R.P. ₹2,900 Save ₹435
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
M.R.P. ₹3,245 Save ₹487
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
M.R.P. ₹2,700 Save ₹635
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
M.R.P. ₹2,700 Save ₹425
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
M.R.P. ₹440 Save ₹66
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
replacement cartridge
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
M.R.P. ₹660 Save ₹100
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
M.R.P. ₹660 Save ₹100
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
in-line TDS monitor · TDS · 3 lines
M.R.P. ₹6,300 Save ₹630
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
replacement cartridge · 22-stage
M.R.P. ₹3,499 Save ₹2,800
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
replacement cartridge · 22-stage
M.R.P. ₹2,499 Save ₹1,800
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
replacement cartridge · 4-stage
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
M.R.P. ₹2,990 Save ₹449
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
M.R.P. ₹3,080 Save ₹462
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
in-line TDS monitor · EC · 2 lines
M.R.P. ₹6,600 Save ₹660
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
in-line TDS monitor · TDS · 2 lines
M.R.P. ₹6,600 Save ₹660
Indicative price, verified 2026-10-08. Confirm on the marketplace before buying.
| # | Product | Price | Score | Type & key spec | Best for |
|---|---|---|---|---|---|
| 1 | HM Digital DM-1: Commercial In-Line Dual TDS Monitor | ₹2,550 | 7.6/10 | TDS · 2 lines | Anyone who needs a in-line TDS monitor |
| 2 | Crompton MINI FORCE II - Pressure Booster Pump 0.5 HP | ₹15,925 | 7.5/10 | 0.5 HP | Anyone who needs a booster pump |
| 3 | Livpure Booster Pump E-50 | ₹2,465 | 7.5/10 | — | Anyone who needs a booster pump |
| 4 | Livpure Booster Pump E-100 | ₹2,758 | 7.5/10 | — | Anyone who needs a booster pump |
| 5 | HM Digital SM-1EC: In-line Single EC Monitor | ₹2,065 | 7.5/10 | EC | Anyone who needs a in-line TDS monitor |
| 6 | HM Digital SM-1: In-line Single TDS Monitor | ₹2,275 | 7.5/10 | TDS | Anyone who needs a in-line TDS monitor |
| 7 | Livpure Multilayer Candle Replacement cartridge | ₹374 | 7.5/10 | — | Anyone who needs a replacement cartridge |
| 8 | The Water Science Replacement Cartridge for Puro HFF 526 & 626 - Pack of 6 | ₹495 | 7.5/10 | — | Anyone who needs a replacement cartridge |
| 9 | Livpure Sediment Filter | ₹560 | 7.5/10 | — | Anyone who needs a sediment filter |
| 10 | Crompton Mini Force i Pressure Booster Pump | ₹19,975 | 7.4/10 | — | Anyone who needs a booster pump |
| 11 | Livpure Activate Carbon Filter | ₹560 | 7.4/10 | — | Anyone who needs a carbon filter |
| 12 | HM Digital TRM-1: Triple In-Line TDS Monitor | ₹5,670 | 7.4/10 | TDS · 3 lines | Anyone who needs a in-line TDS monitor |
| 13 | Konvio Neer Advanced 22 Stages Replacement Cartridge for Shower Filter | ₹699 | 7.4/10 | 22-stage | Homes with hard water |
| 14 | Konvio Neer Universal Shower Filter Cartridge for Hard Water | ₹699 | 7.4/10 | 22-stage | Homes on borewell or tanker water |
| 15 | The Water Science Replacement Cartridge for VERSA-SCF-725 - Pack of 3 | ₹795 | 7.4/10 | 4-stage | Anyone who needs a replacement cartridge |
| 16 | Livpure RO Membrane HR | ₹2,541 | 7.4/10 | — | Anyone who needs a RO membrane |
| 17 | Livpure RO Membrane | ₹2,618 | 7.4/10 | — | Anyone who needs a RO membrane |
| 18 | Crompton CFMSMB5D1.00-V24 - Pressure Booster Pump 1 HP | ₹33,625 | 7.3/10 | 1 HP | Anyone who needs a booster pump |
| 19 | HM Digital DM-2EC: Commercial In-Line Dual EC Monitor | ₹5,940 | 7.3/10 | EC · 2 lines | Anyone who needs a in-line TDS monitor |
| 20 | HM Digital DM-2: Commercial In-Line Dual TDS Monitor | ₹5,940 | 7.3/10 | TDS · 2 lines | Anyone who needs a in-line TDS monitor |
Prices are indicative street prices, last verified 2026-10-08. Always confirm the current price on the marketplace before purchasing.
Free consultation · Pan-India
Tell us your city, your water source and your budget. For homes we will recommend the right technology — including telling you when a ₹3,000 purifier is genuinely enough. For offices, societies and factories, our team will size a system against your water report and send a specification-backed quotation.
Or email betterworkindia@gmail.com — attach a water analysis report and we can quote faster.
Homes
Right-sized recommendation for your TDS, not the most expensive unit
Offices & societies
25 LPH to 2,000+ LPH, sized on headcount and feed water
Industry
Pharma, food, textile, boiler feed — engineered to your specification
Service & AMC
Installation, repair and AMC with written response times