Product availability is real-time and adjusted continuously. This product will be reserved for you when you complete your order. If your organization requires order approval, the product will be reserved once Grainger receives the final approved order based on product availability at that time.
A telephone line current booster augments available line current to an analog, two-wire bridged, ringing telephone line by an additional 30 mA. Boost a phone line with 20 mA of normal available line current to 50 mA with the addition of one of these booster circuits. Choose from single channel, four-channel and eight-channel current boosters. Heighten your commercial phone line's power with a telephone line current booster from Grainger.
If the settings on your account have changed since this order was submitted, they will be updated when this order is approved.
Pricing and availability are not confirmed until the order is processed. Promotional pricing and offers associated with this order will only apply if the order is approved within the timeframe of the promotion.