Water-Filled Anchor Weight – 80kg Capacity — Outdoor Cinema Pro

Air Blowers & Anchors

Water-Filled Anchor Weight – 80kg Capacity

$199.00 AUD

A water-filled PVC anchor weight for securing inflatable cinema screens, marquees and temporary structures. Sold as a single unit.

  • Holds 80kg of water when filled
  • Heavy-duty UV-stable PVC
  • Built-in tether point / D-ring
  • Single anchor (screens need minimum 4)

Buy online for delivery Australia-wide, or request a tailored quote — we’re happy to spec a package for your site.

Overview

An 80kg-capacity water-filled anchor, sold as a single unit. It is the heavier of the two capacities we stock, intended for larger inflatable screens and for sites that catch real wind — open parkland, foreshores, anywhere without a building or treeline to break the gusts.

When 80kg rather than 40kg

Capacity is about the load the screen puts on the tether, not the size of the bag. Larger screens present far more surface to the wind, and the holding force needed climbs quickly with both screen area and exposure. If you are anchoring a big inflatable, or working somewhere the wind has a clear run at you, the 80kg unit is the one to specify. For smaller screens on sheltered ground, the 40kg version is usually sufficient and easier to handle.

How it works on site

Heavy-duty UV-stable PVC, flat and light when empty, filled from a standard hose once positioned. A built-in D-ring takes rope or ratchet straps. Because nothing is driven into the ground, it is the standard approach on concrete, pavers, synthetic turf and any surface a venue will not let you peg — and it drains and folds away at pack-down.

This listing is a single anchor. An inflatable cinema screen needs a minimum of four, so most buyers want the 80kg Set of 4 — singles are mainly for topping up an existing kit or replacing a damaged unit.

Why these anchors

More than a screen anchor

A water-filled PVC weight that holds your gear down without pegs — and folds away to nothing when the night’s over.

A water-filled anchor securing an outdoor structure

Holds down more than screens

Built for inflatable cinema screens, but just as at home anchoring marquees, gazebos, banners and event signage — anywhere you need ballast on a hard surface where you can’t peg into the ground.

  • Inflatable cinema screens
  • Marquees, gazebos & tents
  • Banners, flags & signage
  • Any temporary structure on concrete or pavers
A water-filled anchor folded flat for storage

Collapsible — packs flat

Empty, it folds down to a flat sheet of PVC that stows in a corner of the trailer. No rigid, space-hungry blocks to find room for between events.

  • Folds flat when empty
  • Stacks and stores in seconds
  • A fraction of the space of solid weights
Filling a water anchor from a hose on site

Fill on site — no heavy lifting

Fill it from a standard hose when you arrive and tip it out when you leave. You move an empty bag, not a block of concrete or steel — easier on your back, your vehicle and your load limits.

  • Fills from any garden hose
  • Travels empty and light
  • No concrete, steel or sand to haul
  • Built-in D-ring for ropes, straps or carabiners

Specifications

Key Features

Holds 80kg of water when filled
Constructed from heavy-duty, UV-stable PVC
Easy to fill and drain on location
Compact and lightweight when empty
Suitable for inflatable screens, gazebos, or temporary signage
Ideal for areas where pegs are not allowed or practical

Frequently asked questions

How many anchors does an inflatable screen need?

At least four — one per corner. Then size the total ballast to the screen and the wind. As a guide from our wind-load estimates, four 40 kg anchors suit a 3–4 m screen in gusts to about 30 km/h, four 80 kg anchors cover a 4 m screen in stronger gusts or a 5–6 m screen in lighter ones, and larger screens or exposed sites want more. Err on the side of extra ballast — the full table is in our anchoring guide.

Do they have to be filled to capacity?

No — fill to the ballast the day needs. An 80 kg anchor filled to 60 kg provides 60 kg of hold, and since anchors travel empty, many operators standardise on the 80 kg size and adjust the fill to the screen and the forecast. Capacity is headroom, not obligation.

Why use water anchors instead of pegs?

On hard surfaces — concrete, pavers, decking or indoors — you can’t drive pegs into the ground. Water anchors give you the same hold-down without marking the surface, and they’re kinder to turf than stakes.

How are they attached to the screen?

Each anchor has a built-in tether point / D-ring; connect it to the screen’s anchor points with ropes, ratchet straps or carabiners.

Can I use them for marquees and other structures?

Yes — they suit marquees, gazebos, banners and signage too, anywhere you need ballast without pegging in.

How heavy are they to move?

You only ever carry them empty — fill on site from a hose and empty before pack-down, so there’s no lifting of solid weights.

Planning an outdoor screen or LED installation?

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