What it delivers
The G green EXPERT 203641 Tankless Flush Kit is a flush kit for descaling a tankless heat exchanger; its listing says it fits most tankless water heaters that have isolation/service valve ports.
Hook the hoses to the heater's service valves, fill the bucket with vinegar or descaler and let the pump circulate it through the exchanger.
Pump flow, per the listing: 1400.
How often: Rinnai says at least once a year, more on hard water. How long: up to about 45 minutes in its consumer guide, at least an hour at 3 to 4 GPM for its SENSEI models.
Other listed details: material: Acrylonitrile Butadiene Styrene (ABS), Plastic, Stainless Steel; model: 203641; fits: most tankless water heaters that have isolation/service valve ports; pump flow: 1400.
The listing gives dimensions of 10 in (L) x 10 in (W) x 11.5 in (H), a weight of 8.6 lb and 1/6hp water utility pump, 2pcs stainless steel hoses, 3-gal pail, adapter kits, open end wrench for pail in the box.
Warranty, per the listing: Enjoy reliable support with our 12-month manufacturer warranty and responsive customer service team ready to assist with installation questions, troubleshooting, and warranty needs.
Right unit for this house?
Install it when
- Yearly or hard-water flushing
- Owners who flush their own heater
Look at another unit when
- Heaters whose manual calls for a different method
Strengths and trade-offs
Strengths
- Descaling kit
- Names most tankless water heaters that have is
- 1400
Trade-offs
- Fit depends on your valves
Install limits
- Figures are the maker's or seller's own. Flow at a rise is our estimate from the input; gas, venting and electrical work needs a licensed professional.
Rated performance
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Model number | 203641 | Retailer |
|---|---|---|
| Material | Acrylonitrile Butadiene Styrene (ABS), Plastic, Stainless Steel | Retailer |
| Dimensions (seller) | 10"L x 10"W x 11.5"H | Retailer |
| Product weight | 8.6 lb | Retailer |
| Voltage | 115 V | Retailer |
| Warranty | Enjoy reliable support with our 12-month manufacturer warranty and responsive customer service team ready to assist with installation questions, troubleshooting, and warranty needs. | Retailer |
| Pump flow | 1400 | Retailer |
| Fits | most tankless water heaters that have isolation/service valve ports | Retailer |
Rival units at this flow
More descaling and maintenance kits rated for similar demand
- G green EXPERT 203649 Tankless Flush Kit
- G green EXPERT 203650 Tankless Flush Kit
- Goyappin S313107 Tankless Flush Kit
- G green EXPERT 203648 Tankless Flush Kit
Full descaling and maintenance kits spec grid · Every G green EXPERT unit in the catalog
Final verdict
A sensible descaling kit for yearly or hard-water flushing.
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