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⚡ Flush smarter, not harder — the pro’s secret weapon for flawless HVAC systems!
The NU CALGON 4300-09 RX-11 Flush Kit is a compact, patented solvent solution designed for 3-4 ton refrigeration and air conditioning systems. It effectively removes sludge, carbon residue, oils, acids, and particulates, making it ideal for post-burnout cleanups, retrofits, and R-410A line set conversions. Non-toxic, non-flammable, and ozone-safe, this ready-to-use flush kit ensures professional-grade system maintenance with minimal hassle.
| ASIN | B0086H840C |
| Assembly required | No |
| Batteries required | No |
| Best Sellers Rank | #236,203 in Automotive ( See Top 100 in Automotive ) #457 in Air Conditioning Line Repair Tools |
| Customer Reviews | 4.1 4.1 out of 5 stars (31) |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.2 ounces |
| Item model number | 4300-09 |
| Manufacturer | NU CALGON |
| Product Dimensions | 3 x 3 x 7.5 inches |
J**G
magic stuff
Stuff is magic, dissolves everything.
B**R
Great price
This product works as it should and is a great price!
B**N
This is not required nor is it recommended to be used by equipment manufacturers
This is not required nor is it recommended to be used by equipment manufacturers. If you do choose to use this special procedures are needed as the chemicals left over can cause acid build up and compressor failure in new equipment.
D**F
Excellent product
Great product. Excellent Quality and very good. Will buy again when I need to.
J**0
Works as Expected
Followed the manufactures instructions and it did the job! Is enough for 2 - 5 ton units use entire can.
W**N
Only works for flushing pipe down with gravity.
This is only useable if you flush pipe with gravity. If you inject upward, it will flow back to you and you wont like the chemical in your room.
Trustpilot
2 weeks ago
1 week ago