“MB QUART 4 CHANNEL 600W X-LINE SERIES CLASS SQ A/B AMPLIFIER XA1-600.4 EXTREME” has been added to your cart. Continue shopping Remove item Thumbnail image Product Price Quantity Subtotal × Sentinel Hydroponic digital environment control - Humidity AC CO2 Temp hydro $200.00 Sentinel Hydroponic digital environment control - Humidity AC CO2 Temp hydro quantity $200.00 × MB QUART 4 CHANNEL 600W X-LINE SERIES CLASS SQ A/B AMPLIFIER XA1-600.4 EXTREME $250.00 MB QUART 4 CHANNEL 600W X-LINE SERIES CLASS SQ A/B AMPLIFIER XA1-600.4 EXTREME quantity $250.00 Update cart Cart Totals Subtotal $450.00 Shipment Shipping costs are calculated during checkout. Total $450.00 Proceed to checkout