EWI ISOBOX-2 Two-channel Line Level Isolation Box and Line Balancer

We will be closed from 4 pm on Tuesday, 23rd December 2025 and reopen at 10 am on Monday, 12th January 2026. All orders placed and paid for before midday on the 23rd will be shipped before closing. All orders and enquiries placed after midday on 23 December 2025 will be attended to upon reopening.

Order weight is calculated on whichever of the dead (actual) or volumetric weight is the greatest. As of 11/9/25, capped $11.00 to $19.50 for up to 15kg to most areas. For orders under $50, options are Standard Postage $11.00 or Express Shipping for $19.50. Orders over $1,000 ship for free*. Express Shipping covers one delivery attempt, so please provide an address where someone is available to sign for courier delivery between 9am and 5pm weekdays. You can instruct us to ask the courier to leave your parcel unattended in a safe place, although please be aware that if anything happens to the parcel, neither we nor the courier company can be held responsible. Work addresses are a great delivery option. If using a work address, please include the business's name.

* For some larger items does not apply to Australian remote island locations, some mainland remote locations (outside Darwin NT and Perth WA metro areas) or outside Australia. If you are unsure if you are entitled to capped shipping, it is best to contact us before placing an order.

Got questions about ordering? Whether it's pricing, payment options, delivery times, or warranty details - we've got you covered. Head to our FAQ page for quick answers to the most common queries.

Should you find an identical stocked item for a lower price from a competitor, we will happily match the price, subject to certain terms and conditions. See our Price Match Policy