Very popular, fairly stable cheap Power Tower you can use for dips, knee raises, push ups and pull ups
Can shake when doing dips and if you're over 6' you may find the pull up bar gets in your way while doing dips.
A great entry level power tower that's relatively cheap yet very popular with great customer feedback.
The Body Vision PT600 Power Tower is one of the cheapest power towers but has great customer feedback.
While is is pretty stable it can sometimes shake a bit, particularly during dips and if you're over 6' you may find the design means the pull up bar is very close to your head while doing dips.
The PT600 tower has an almost square base at 42" long by 43" width, it's also 85" tall which is pretty much the average for a power tower.
A massively popular power tower; the Body Vision PT600 can be used for pull ups, pushups, leg raises and dips and is a great value all round multi station piece of kit for your home gym.