Vibco Vibrators has announced the new AL line of lighter-weight, high-frequency concrete vibrators. These lighter designs feature durable, cast aluminum housings that weigh less than comparable cast-iron models without sacrificing performance. There are four new models available. The US-450TAL is ideal for concrete countertops, while the US-700AL is ideal for medium-size precast forms, include steps and manholes. Both operate off of 115- volt power. The BVS-250 and BVS320-AL operate off of a pneumatic power supply. Both models are ideal for small to mediumsize precast forms for ornamental features, countertops and cultured stone. ? www.vibco.com