
Cylindrical tank
300 Litre Water Tank
Roughly holds3 days for 1 personPlanning figure: 100 litres per person per day.
- Capacity
- 300 litres
- Height
- 75 cm
- Diameter
- 76 cm
- Warranty
- 16 years
Jumbo Tank — The Leading Quality
Three-layer water tanks with a 16-year warranty, delivered across Kenya — from compact loft tanks to 25,000-litre systems.
Prices and checkout are on Astralind, the Astral Industries online shop.

Capacities from 300 L to 25,000 L, plus 250–1,000 L loft tanks.
Choose your sizeChoose your sizeJumbo Tank plastic tanks carry a 16-year warranty.
Black UV outer layer, a middle layer and a white food-grade inner layer.
Four delivery zones reaching from Nairobi to the border towns.
By Astral Industries Limited.
Products
Cylindrical jumbo tanks from 1,000 to 25,000 litres, plus 250 to 1,000-litre loft tanks and underground septic tanks - every water tank three-layer moulded, UV stabilised, food grade inside and backed for 16 years. Pick a size to see its dimensions and buy it on Astralind.

Cylindrical tank
Roughly holds3 days for 1 personPlanning figure: 100 litres per person per day.

Cylindrical tank
Roughly holds3 days for 1 personPlanning figure: 100 litres per person per day.

Cylindrical tank
Roughly holds3 days for 3 peoplePlanning figure: 100 litres per person per day.

Cylindrical tank
Roughly holds3 days for 3 peoplePlanning figure: 100 litres per person per day.

Cylindrical tank
Roughly holds3 days for 5 peoplePlanning figure: 100 litres per person per day.

Cylindrical tank
Roughly holds3 days for 6 peoplePlanning figure: 100 litres per person per day.

Cylindrical tank
Roughly holds3 days for 7 peoplePlanning figure: 100 litres per person per day.

Cylindrical tank
Roughly holds3 days for 8 peoplePlanning figure: 100 litres per person per day.

Cylindrical tank
Roughly holds3 days for 10 peoplePlanning figure: 100 litres per person per day.

Cylindrical tank
Roughly holds3 days for 10 peoplePlanning figure: 100 litres per person per day.

Cylindrical tank
Roughly holds3 days for 14 peoplePlanning figure: 100 litres per person per day.

Cylindrical tank
Roughly holds3 days for 16 peoplePlanning figure: 100 litres per person per day.

Cylindrical tank
Roughly holds3 days for 16 peoplePlanning figure: 100 litres per person per day.

Cylindrical tank
Roughly holds3 days for 20 peoplePlanning figure: 100 litres per person per day.

Cylindrical tank
Roughly holds3 days for 26 peoplePlanning figure: 100 litres per person per day.

Cylindrical tank
Roughly holds3 days for 33 peoplePlanning figure: 100 litres per person per day.

Cylindrical tank
Roughly holds3 days for 53 peoplePlanning figure: 100 litres per person per day.

Cylindrical tank
Roughly holds3 days for 83 peoplePlanning figure: 100 litres per person per day.

Loft tank

Loft tank
Roughly holds3 days for 1 personPlanning figure: 100 litres per person per day.

Loft tank
Roughly holds3 days for 3 peoplePlanning figure: 100 litres per person per day.

Septic tank

Septic tank

Septic tank

Septic tank
Why Jumbo
Every Jumbo plastic tank is moulded as a three-layer wall: black outside for UV, a middle layer, and white food-grade virgin material inside.
16year warrantyTerms are confirmed with your purchase documentation.
OutsideSun and weather
InsideYour water
Black, for UV protection and weather resistance
UV stabilised, so the wall keeps its strength under the Kenyan sun — and opaque, which is what keeps algae from taking hold inside. This is the layer you see, and the one that takes the knocks.
Know more about UV stabilisation and what the sun does to plasticBetween the outer and inner layers
White virgin material, food grade and anti-algae
Virgin material, not regrind — the only surface your water touches. Smooth enough that residue has nowhere to sit, and bonded into the wall during moulding rather than glued on afterwards.
Know more about what food grade and virgin material mean
5,000 L
Schematic, not to scale. The middle layer is shown hatched.
Vented so the tank breathes as water moves in and out.
Non-toxic inner surface for household water storage.
The outer wall is built to sit in direct sun.
Three bonded layers instead of one moulded wall.
A smooth interior keeps routine cleaning simple.
Where they work
The sizing is the same exercise whether it is a five-person household or a 400-pupil school: how much water a day, and how long you want to hold it.

A three-layer tank on the compound means the taps keep running when the mains do not.

Storage that carries a shamba through a dry stretch, feeding drip lines and livestock troughs on gravity.

Schools, clinics, guest houses and apartment blocks, sized on daily demand rather than guesswork.
Tank Sizer
The Tank Sizer asks what the water is for and works the capacity out from there — household, livestock, irrigation, or the rain off your roof.

A common household planning figure. Adjust it to match how your home actually uses water.
Compare
Height, diameter and floor space for six tanks from across the cylindrical range, with roughly how many people each one serves.
“Roughly holds” uses a household planning figure of 100 litres per person per day. Footprint is the floor area under the tank itself, worked out from its published dimensions.
Delivery
Delivery is organised in four zones running from Nairobi and the immediate 50 km radius out to roughly 400 km, and the coastal outlets are served as well.
Nairobi - 50 km, plus listed coastal outlets
Nairobi, Ngong, Kiserian, Ruaka, Wangige, Kitengela, Ruai, Ruiru, Kikambala, Kikuyu, Kiambu, Limuru, Isinya, Mombasa, Kilifi.
Delivered within 7 working days.
50 - 200 km
Kitui, Murang'a, Machakos, Naivasha, Kangundo, Masii, Kajiado, Nyahururu, Chuka, Mwingi, Namanga, Malindi, Ukunda.
Delivered within 14 working days.
200 - 300 km
Eldama Ravine, Bomet, Molo, Oloitokitok, Subukia, Nanyuki, Meru, Sotik, Kericho, Nyamira, Kilgoris.
Delivered within 14 working days.
300 - 400 km
Kisii, Kisumu, Eldoret, Mbita, Kapsabet, Voi, Homa Bay, Maua, Isebania, Garissa, Kakamega.
Delivered within 14 working days.
Not on the list? Send us your location and we work out delivery to you, or size your tank first.
Confirm delivery on WhatsAppQuestions
If your question is not here, call the team - they answer these every day.
Yes. Delivery is organised in four zones running from Nairobi and the immediate 50 km radius out to roughly 400 km, and the coastal outlets are served as well. Share your delivery location with your enquiry and our team will confirm what is possible for your area.
Jumbo Tank's August 2026 published list gives a maximum of 7 working days within about 50 km of Nairobi and at our coastal outlets, and 14 working days further out. Actual timing depends on stock, load and destination, so it is confirmed with your final quote rather than promised up front.
Jumbo Tank plastic tanks carry a 16-year warranty. Warranty terms and conditions are confirmed with your purchase documentation.
Jumbo plastic tanks have three layers. The outer black layer is UV stabilised and takes the weather; the inner white food-grade layer is the surface your water sits against; a middle layer sits between them.
Black is the standard product colour. Tanks in other colours can be produced on special order - talk to our team about quantities and lead time.
The Tank Sizer multiplies your daily water demand by the number of days of storage you want, adds a fixed 15% safety buffer, and then picks the smallest standard tank that meets the result. It can also size from the rain your roof catches, or from a capacity you already have in mind. Every planning figure it uses is shown on screen, and the daily use and the days of storage can be edited.
Not on this website. The Tank Sizer works out the size you need, then links that size straight to Astralind (astralind.com), the Astral Industries online shop, where its price is shown and Jumbo Tanks are bought — use the Buy this size on Astralind button under your result. If you would like us to confirm delivery to your site first, send the recommendation through on WhatsApp or call us. This website is a showroom: orders and payments are taken on Astralind.
The head office is at Astral Plaza, Old Mombasa Road, Kyang’ombe, Nairobi. There are factory outlets at Isinya in Kajiado County and at Kikambala in Kilifi County. Use the Get Directions links in the contact section for a map pin.
Send an enquiry with your capacity, site and timeline, or call the team directly. Steel tanks, steel towers and pre-engineered structures are designed to your specification and quoted individually - they are not priced by the Tank Sizer.
Blogs
Sizing, water quality and maintenance, written for Kenyan conditions by the people who mould the tanks.

Tank construction
The black outer layer of a Jumbo Tank is UV-stabilised and opaque. It takes the Kenyan sun so the wall keeps its strength, and keeps light out so algae has less to work with. Here is what it does, and what it does not.
6 min read
Read the blog

Tank construction
The inner layer is the only surface your stored water touches. In a Jumbo Tank it is white, food-grade virgin material, smooth and moulded into the wall. Here is what each of those words is actually doing.
6 min read
Read the blog

Water quality
Yes — provided the inner surface is food grade and the tank is kept dark, sealed and clean. What "food grade" means, what makes a tank unsafe, and how to tell the difference.
3 min read
Read the blog