GPH287T5L UV lamp Oman — 287mm 4-pin compact germicidal replacement bulb

GPH287T5L UV lamp Oman

The GPH287T5L UV lamp is a compact 287mm germicidal tube on a 4-pin single-ended T5 base, and UV Water Systems stocks it in Muscat for the Oman market. It is the size fitted to small point-of-use UV chambers, water dispenser UV modules and the smallest point-of-entry sterilizers, and it is the equivalent envelope to Viqua-class 287mm lamps.

Small chambers are the ones most often neglected. A 287mm lamp sits inside a dispenser or a compact under-sink unit with no controller and no alarm, so nothing tells the user the UV stopped working eight months ago. If the equipment has no lamp-hour counter, put the change date on a label on the housing and treat it as a fixed annual task.

GPH287T5L UV lamp Oman — technical specifications

Model / ANSI code	GPH287T5L
Length	287 mm
Base	4-pin single-ended, T5
Lamp diameter	15 mm (T5)
Type	Low-pressure mercury, hard glass
Duty	Point-of-use and compact point-of-entry UV
Germicidal output	254 nm UV-C
Rated service life	9,000 operating hours (approx. 12 months continuous)
Supplied by	UV Water Systems — Uniqueness View LLC, Muscat, Oman

GPH287T5L UV lamp Oman — compatibility and cross-references

Compact point-of-use UV chambers taking a 287mm 4-pin lamp
Water dispenser and water cooler UV modules
Small under-sink UV sterilizers
Viqua-class 287mm equivalent chambers
Vending and ice machine water line UV

Measure the failed lamp end to end and count the pins before ordering. Several compact lamps sit within 30mm of each other in length and none of them are interchangeable. Send us a photo of the lamp and housing if the part number has burned off.

Where the GPH287T5L UV lamp Oman is used

In Oman this lamp goes into office and villa water dispensers, under-sink drinking water units, ice machine and coffee machine feed lines, and compact UV modules on RO permeate. UV Water Systems supplies and services these for hospitality groups, offices and residential customers across Muscat with same or next-day delivery.

When to replace your GPH287T5L UV lamp Oman

UV-C output decays long before the lamp stops lighting. A germicidal lamp still glowing at 15 months may be delivering well under the dose its chamber was sized for, which means the water leaving the system is no longer being disinfected to specification. Replace on hours, not on appearance. For systems running continuously, that means once every 12 months. Log the change date on the controller or on the chamber label so the next service is scheduled rather than remembered.

Handle the quartz sleeve at the same visit. Scale and iron deposits on the sleeve block UV-C just as effectively as a weak lamp, and in Oman’s high-hardness groundwater sleeves foul faster than most manufacturers’ generic guidance assumes. Clean the sleeve with a mild acid descaler, inspect the O-rings, and replace the sleeve outright every three to five years.

Standards and references

The UV dose a chamber must deliver, and the reasoning behind the annual lamp change, come from published drinking water guidance rather than from equipment marketing. The WHO Guidelines for Drinking-water Quality set out the microbiological targets disinfection is designed to meet, and the International Ultraviolet Association publishes the dose and validation practice the industry works to. We size and service UV systems in Oman against those references.

Buying GPH287T5L UV lamp Oman in Oman

UV Water Systems has supplied and serviced ultraviolet disinfection equipment across the Sultanate for more than 14 years, for hospitals, oil and gas sites, schools, hotels, food and beverage plants and villas. We stock germicidal lamps and ballasts in Muscat rather than ordering them in after a failure, so a plant that loses disinfection on a Sunday morning is not waiting three weeks for an air freight shipment.

Every lamp we supply is a named-manufacturer part with traceable 254 nm output data — the documentation health authority and HACCP auditors in Oman ask for. Our technicians cover Muscat, Sohar, Nizwa, Salalah and Duqm, and can carry out the lamp change, sleeve clean and UV intensity check as one visit under an annual maintenance contract.

Uniqueness View LLC is ISO 9001:2015 certified. Call +968 9763 7786 or email sales@waterfilteroman.com for stock availability, bulk pricing on service-contract quantities, or help identifying the correct lamp for a chamber you cannot find a part number on. Send us a photo of the old lamp and the chamber label and we will identify it for you.

GPH287T5L

GPH287T5L UV Lamp 287mm 4-Pin – Compact Germicidal Replacement Bulb | UV Water Systems Oman