The RQ-950 is a genuine Luminor replacement quartz sleeve for LUMINOR BLACKCOMB-HO LBH4-401, LBH5-401, and LBH6-401 High Output systems, plus their NSF Class A/B, hot water (HW), low-UVT (-50), and total organic carbon (TOC) variants below. It's an authentic Luminor part, not an aftermarket substitute, so your system keeps performing the way it was tested and certified.
LBH6-401A (NSF Class A, monitored, includes UV sensor)
LBH4-401-HW (hot water rated)
LBH5-401-HW (hot water rated)
LBH6-401-HW (hot water rated)
LBH4-401-50 (low-UVT crossover)
LBH5-401-50 (low-UVT crossover)
LBH6-401-50 (low-UVT crossover)
LBH4-401-TOC (total organic carbon reduction)
LBH5-401-TOC (total organic carbon reduction)
LBH6-401-TOC (total organic carbon reduction)
What the HW, -50, and TOC variants mean
All three run on the same chamber and sleeve as the standard LBH4/5/6-401, just tuned for different water conditions: "-HW" is hot-water-rated at a reduced flow, "-50" treats source water down to 50% UV transmittance instead of the standard 75% minimum, and "-TOC" adds a second UV wavelength to reduce dissolved organic carbon at a much lower flow rate. The RQ-950 sleeve is identical across all fifteen models above.
Why a genuine Luminor sleeve matters
Luminor certifies its UV systems as a complete lamp, chamber, and sleeve unit. A non-Luminor sleeve can differ in wall thickness or quartz quality, reducing UV-C output reaching the water and affecting your warranty coverage.
Complete your replacement
Luminor RL-950HO UV Replacement Lamp, the standard lamp for this sleeve. Replace every 12 months, or after 10,000 hours. TOC models use a separate RL-950HO-TOC lamp; contact us to source one.
Watch this step-by-step video to learn how to replace a quartz sleeve on a Luminor UV water treatment system for optimal UV disinfection performance. ESP Water Products, an authorized Luminor dealer, offers genuine Luminor UV systems and replacement parts.
Does the RQ-950 fit the HW, -50, and TOC versions of my system, or just the standard LBH-401?
A:
It fits all of them. The HW, low-UVT ("-50"), and TOC variants of the LBH4/5/6-401 all use the same chamber and sleeve as the standard system; only the lamp and the system's internal dose settings change between variants.
Q:
How do I know if I need to clean the sleeve or replace it?
A:
Clean it if it's scaled or lightly stained; replace it if it's scratched, pitted, or stays cloudy after cleaning. Even with no visible damage, Luminor recommends replacing the sleeve every 24 months as routine maintenance, since UV-C transmission through quartz declines gradually with age.
Q:
Do I need to buy the lamp too, or can I just replace the sleeve?
A:
The RQ-950 is the sleeve only. If your lamp is also due, pair it with the [RL-950HO](https://espwaterproducts.com/products/luminor-rl-950ho-replacement-uv-lamp-for-lbh4-401-lbh5-401-lbh6-401) lamp, or save by ordering the [RLQ-950HO](https://espwaterproducts.com/products/luminor-rlq-950ho-uv-lamp-and-sleeve-kit-for-lbh4-401-2-lbh5-401-2-lbh6-401-2) kit, which bundles both.
Q:
Can I use a non-Luminor sleeve instead of the RQ-950?
A:
You can, but it's not recommended. Luminor certifies its systems as a complete lamp-chamber-sleeve unit, and a non-Luminor sleeve can differ in wall thickness or quartz quality, which reduces the UV-C dose reaching the water and can affect your warranty coverage.
Q:
Why does my TOC or HW system need a different lamp but the same sleeve?
A:
The TOC and HW variants change the dose and wavelength the lamp delivers, which needs a different lamp built for that job. The sleeve's role is just to protect the lamp and let UV-C pass through to the water, so its design doesn't need to change between variants.
Luminor RQ-950 Sleeve for LBH4-401, LBH5-401, LBH6-401