GI Tee Fittings in Kenya, All Sizes

GI tee fittings are galvanized threaded tees used to branch water and utility lines. Every GI plumbing layout with more than one outlet needs them.

This page covers the full range. In addition, each size page lists the matching pipe size, so pick a size above before you order.

What are GI tee fittings?

A GI tee is a T-shaped galvanized iron fitting with three female threaded openings. It splits one pipe run into two, or joins two flows into one.

An equal tee has all three openings the same size, while a reducing tee has a smaller branch. Because the branch leaves at 90 degrees, tees are the standard way to take a branch line off a main in threaded GI plumbing.

Key terms explained

Galvanized iron (GI): Iron or steel coated with a layer of zinc. The zinc corrodes first, so it protects the metal underneath from rust.
BSP thread: British Standard Pipe thread, the common pipe thread in Kenya. Tapered BSP threads (BSPT, ISO 7-1) tighten into a seal as you screw them together.
Nominal size: The trade size of a pipe or fitting, such as 1/2 inch. It names the pipe size, so it is not an exact measurement of the outside diameter.
Thread sealant: PTFE tape, hemp with jointing paste, or an anaerobic sealant applied to male threads. It fills tiny gaps so the joint does not leak.
Branch: The side outlet of a tee. It leaves the main run at 90 degrees.
Equal tee: A tee with all three openings the same size.

Features and benefits

Three female BSP taper threads in one galvanized body.
Equal outlets, so any end can serve as the branch.
Zinc coating that slows rust in water service.
Screwed joints that need only pipe wrenches and sealant.
Sizes to match standard GI pipe.

Technical specifications

Product	GI tee fittings
Sizes	1/2, 3/4, 1, 1 1/4 and 2 inch
Material	Galvanized (zinc-coated) iron
Ends	Female BSP taper thread
Supply	Single pieces or bulk
Supplier	Sparks Plumbing Experts Ltd, Nairobi

Each size has its own page with sizing details. Choose a size above, then request a quote.

Applications of GI tee fittings

Fixture branch lines. Takes branches off a main to feed sinks, showers, toilets and taps.
Floor take-offs on risers. Feeds each floor from a vertical rising main in apartments and offices.
Tank manifolds. Links two or more storage tanks so they fill and draw together.
Drain-down points. Adds a drain valve at the low point of a line for maintenance.
Pressure gauge tappings. Provides a branch for a gauge or pressure switch, with a reducing bush.
Fire hose reel branches. Feeds hose reels from a threaded fire water main.
Irrigation laterals. Splits an irrigation main into lateral lines for different blocks.
Pump bypass lines. Creates a bypass around a pump or meter for servicing.
Water heater feeds. Splits the cold supply between a water heater and cold outlets.
Livestock troughs. Branches farm water lines to several troughs along a fence line.
Borehole sampling points. Adds a sample or test tap near the wellhead.
Line extensions. Adds a new outlet to an existing GI line during renovations.

How to choose and install

Pick the tee by the size of the main run. Then reduce the branch with a bush if it is smaller.
Fit an isolating valve on each branch, so you can work on it without shutting the main.
Plan the screwing order: the last joint on a closed loop usually needs a union.
Seal male threads with PTFE tape or hemp and paste, and do not over-tighten.
Support heavy branches, so the tee does not carry their weight.

Why choose Sparks Plumbing Experts

Every common pipe materialGI, PPR, PVC, HDPE, brass and stainless fittings are all stocked, so you can match any existing system.
Common sizes in stockMost fitting types come in several sizes, from small domestic sizes up to larger mains sizes.
Pipes, fittings and valves togetherPipes, fittings, valves, clamps and jointing products come in one order.
Help with thread and size standardsWe help you confirm inch and millimetre sizes before you buy, which avoids return trips.
Visit or collect in NairobiOur store is at KCB Building, Enterprise Road, in the Industrial Area, so you can see parts before you buy or collect your order.
Quotes your wayAsk for prices by phone, WhatsApp, email or the online quote form, whichever suits you on site.
Over 1,600 products in one placeOur catalogue covers 55 categories, so one supplier can handle most of your parts list.
Help choosing the right partSend a nameplate photo, a drawing or the old part, and we help you match size and specification.
Single items or project quantitiesWe price a single replacement part just as readily as a full site order.
Supply across East AfricaWe serve customers across Kenya, and we also supply buyers in Uganda and Tanzania.

Related products and accessories

Browse more: GI Pipes & Fittings · Valves · Gauges · Tapes.

Ordering from Sparks Plumbing Experts

We supply customers across Kenya, and we also serve buyers in Uganda and Tanzania. You can collect from our store at KCB Building, Enterprise Road, Nairobi, or ask us about delivery to your site. Send your quantities and specifications, and we will reply with prices and availability.

Request a Quote WhatsApp 0726 086 895

Frequently asked questions

What sizes do GI tee fittings come in?

Our list covers 1/2, 3/4, 1, 1 1/4 and 2 inch. Ask us for other sizes or reducing tees.

Can I mix sizes in one GI tee fittings order?

Yes. Send one list with each size and quantity, and we will quote it together.

How do I seal GI tee fittings?

Seal each male thread that enters the tee with PTFE tape or hemp and jointing paste.

Are GI tee fittings used for fire lines?

Yes, threaded GI tees are common on hose reel branch lines. Follow the fire design for sizes and pressure.

What details do you need to quote GI tees?

Tell us the size, the quantity and what the item will connect to. A photo of the old part or a drawing also helps. Then call or WhatsApp 0726 086 895, or use the quote form on this page.

Do you deliver GI tees outside Nairobi?

Yes. We supply customers across Kenya, and we also serve buyers in Uganda and Tanzania. Delivery or courier arrangements are agreed when you confirm the order.

How much does a GI tee cost in Kenya?

The price depends on the size, the quantity and current steel prices. Therefore, send your list with a quote request and we will reply with current figures.

Should I use PTFE tape or paste on GI tees?

Either works when applied correctly. Wrap PTFE tape clockwise on the male thread, or use hemp with jointing paste on larger sizes. Do not over-tighten, because that can crack the fitting.

Can GI tees connect to copper pipe?

Avoid a direct joint between galvanized steel and copper, because the zinc then corrodes quickly. Instead, use a brass adaptor or, better, a dielectric union as the transition.