Mammoth Pro / DARKROOM II DR240 - 2.4m x 2.4m x 2.0m - Grow Tent Silver


Category Tents

Mammoth Pro / DARKROOM II DR240 - 2.4m x 2.4m x 2.0m - Grow Tent Silver

SKU: 97060
£369.95 £299.95

(Out of Stock)
Mammoth Pro / DARKROOM II DR240 - 2.4m x 2.4m x 2.0m - Grow Tent Silver


Category Tents

The Mammoth Darkroom II has been rebranded as the Mammoth Pro - the only thing that's changed is the name!

Mammoth Pro / DARKROOM II DR240 Grow Tent Silver

Just a short time ago, the team at Mammoth were manufacturing products for the Secret Jardin range. Now they’re storming into the UK market directly, in order to bring you DARKROOM II and DARKSTREET II Grow Tents at a huge discount – the same high-quality at a great new price.

  • Mammoth DARKROOM II – classic DARKROOM tents at a great price
  • All of the necessary features for 100% grow-room control
  • Quick and easy to assemble
  • Ideal for use with 4 x 600w lights
  • Tough fabric lined with 95% reflective mylar
  • Heavy-duty framework secured with specially engineered corner segments
  • High-quality zips for a totally light-proof unit
  • Hanging tubes with 30kg loading capacities for lights, carbon filters, duct fans, etc.
  • Machine washable at 40 degrees for quick and easy cleaning
  • Removable waterproof drip-sheet
  • Carry bag supplied for hassle-free transportation


16 x upright poles
16 x horizontal bars
3 x middle support pieces
8 x corner pieces
8 x hanging rails
1 x mylar-lined fabric outer
3 x securing straps
1 x waterproof drip-sheet

240cm x 240cm x 200cm
Intake socks: 2 x 12" (305mm)
Extraction socks: 2 x 12" (305mm)
Cable socks: 3 x 3" (76mm)
Cooltube socks: 4 x 8" (203mm)
Velcro-sealable passive intake panel: 2 x 20" x 12" (500mm x 300mm)

How the Mammoth Pro / DARKROOM II DR240 Grow Tent Silver Works:

Mammoth DARKROOM II Grow Tents are premium products minus the premium price-tag – light-years ahead of the countless low-grade alternatives on the market. They’re an intensively researched, tried-and-tested product, designed to provide you with the features required to create the perfect, enclosed growing environment. The team at Mammoth have thought of everything: there are built-in access points to accommodate equipment for every aspect of your indoor garden. The tent’s framework is constructed using high-strength steel poles that are secured into position using new, specially engineered polypropylene corner segments – now three times stronger than those of other grow tents. It’s also manufactured using heavy-duty fabric. Quality material is crucial to eliminating light leaks and keeping your grow protected.

Photosynthesis is the lifeblood of your plants; for this reason, they are very finely attuned to variations in light cycles. Cheap tents with weak spots that cause light-leaks can lead to disastrous results. That’s why you need a grow tent with the prestige of the Mammoth Darkroom II: when the zips are closed, this tent forms a properly sealed unit. Light cannot penetrate through and disturb the ‘lights-off’ period – the inside always stays 100% pitch-black. Conversely, high-intensity indoor lighting can be used comfortably during the ‘lights-on’ period without ever being visible from the outside: light energy produced by your lamp is directed towards your plants, where it’s needed most! This is all made possible with high-quality double stitching, drawstrings for all inlets and premium-grade lightproof zips. 95% of your lamp’s light is directed back towards plants via a layer of reflective hammered-silver mylar lining, covering every inch of the Mammoth DARKROOM II Grow Tent’s sides and ceiling.

The Mammoth DARKROOM II Grow Tent is supplied with extra strong hanging tubes, which comfortably accommodate up to 30 kilos, providing more than adequate support for duct fans, carbon filters, lighting and other equipment. The DARKROOM also features a removable water-proof drip-sheet, which ensures that any spillages can be easily wiped down. The tent is also machine-washable at 40 degrees for times when more heavy duty cleaning may be required.

For MAMMOTH results, use a Mammoth grow tent!

How to use the Mammoth Pro / DARKROOM II DR240 Grow Tent Silver:

See the supplied instruction manual for a simple visual guide to erecting DARKROOM II Tents. Here is a very quick summary:

Unpack the tent and connect four of the horizontal bars, (marked with an ‘A’) into 4 of the corner-pieces to form a square. Lay your square down flat on the ground and insert the 4 lower upright poles (marked with a ‘B’) into the 4 corners pieces. Then insert the upper upright poles, marked with a ‘C’, into the lower 4 upright poles (B). Place a corner piece on top of each upright pole and connect them with the remaining horizontal bars (marked ‘A’).

Undo the zips and locate the ceiling square of the tent fabric. Place the ceiling square of the tent around the top corners of the tent-frame so that it fits snugly. Pull the material down, locate the floor area and slide it underneath the tent frame so that it can be fitted into the bottom corners. Close the zips and place the fabric drip-tray in the bottom of the tent, wrapping the velcro tabs around the pole at each corner to secure it in place.

Hanging tubes are fitted after the fabric on this range of tents. Hang your filter and/or duct-fan from the hanging tubes and feed ducting out through the most convenient extraction sock. Intake ducting can be fed through the most convenient intake sock. Fit your reflector and lamp from the hanging rails so that it sits in the centre of the tent. Feed your power cables through the most convenient cable sock and pull all drawstrings tight around any entry points.

Please note - these products are being constantly updated. Contents may differ slightly from those described in the supplied instruction sheet.

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